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MARC Lista (tabellare)
Building and probing small for mechanics. / / Christian Joachim
Building and probing small for mechanics. / / Christian Joachim
Edizione [1st ed. 2020.]
Pubbl/distr/stampa Cham, Switzerland : , : Springer, , [2020]
Descrizione fisica 1 online resource (VIII, 232 p. 154 illus., 137 illus. in color.)
Disciplina 620.5
Collana Advances in Atom and Single Molecule Machines
Soggetto topico Molecular machinery
Chemical engineering
ISBN 3-030-56777-X
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Introduction: from the Anthycytera astronomical clock to molecular machinery -- From the Pascaline to a 5-digits metallic and planar miniature mechanical calculator 1 cm in lateral size -- Photo-microlithography fabrication of the parts of a micro-mechanical calculator -- Fabricating solid state gears at the nanoscale -- Prototypes of molecular gears with an organometallic piano-stool architecture -- Design and synthesis of a nano-winch -- Chemical anchoring of molecular rotors -- Anchoring molecular rotors by on-surface synthesis -- Transmission of Rotational Motion between Molecule-Gears -- A simple train of PF3 molecule-gears and its mechanics -- Modelling of Molecule-Scale Single Gears and Gear Trains -- Rotation of Adsorbed molecules induced by tunneling electrons -- Motion and Nanomechanical effects in Supramolecular Catalysts -- Five minutes in the life of a molecular shuttle: near-equilibrium measurements of shuttling dynamics with optical tweezers.
Record Nr. UNINA-9910420951303321
Cham, Switzerland : , : Springer, , [2020]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Diarylethene molecular photoswitches : concepts and functionalities / / Masahiro Irie
Diarylethene molecular photoswitches : concepts and functionalities / / Masahiro Irie
Autore Irie Masahiro
Pubbl/distr/stampa Weinheim, Germany : , : Wiley-VCH GmbH, , [2021]
Descrizione fisica 1 online resource (239 pages)
Disciplina 547.7
Soggetto topico Molecular machinery
Soggetto genere / forma Electronic books.
ISBN 3-527-82286-0
3-527-34642-2
3-527-82285-2
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Cover -- Title Page -- Copyright -- Contents -- Preface -- Chapter 1 Introduction -- 1.1 General Introduction -- 1.2 Discovery of Diarylethene Molecular Photoswitches -- References -- Chapter 2 Reaction Mechanism -- 2.1 Basic Concepts -- 2.2 Theoretical Study -- 2.3 Reaction Dynamics -- 2.3.1 Cyclization Reaction -- 2.3.2 Cycloreversion Reaction -- References -- Chapter 3 Photoswitching Performance -- 3.1 Quantum Yield -- 3.1.1 Photocyclization Quantum Yield -- 3.1.2 Solvent Effect on Cyclization Quantum Yield -- 3.1.3 Photocycloreversion Quantum Yield -- 3.2 Thermal Stability -- 3.3 Fatigue Resistance -- 3.4 Fluorescence Property -- 3.4.1 Turn‐Off Mode Photoswitching -- 3.4.2 Turn‐On Mode Photoswitching -- 3.5 Chiral Property -- References -- Chapter 4 Photoswitchable Crystals -- 4.1 Dichroism -- 4.2 X‐Ray Crystallographic Analysis -- 4.3 Quantum Yield -- 4.4 Multicolored Systems and Nano‐Layered Periodic Structures -- 4.5 Fluorescent Crystals -- 4.6 Photomechanical Response -- 4.6.1 Surface Morphology Change -- 4.6.2 Reversible Shape Change -- 4.6.3 Bending Response of Mixed Crystals -- References -- Chapter 5 Memory -- 5.1 Single‐Molecule Memory -- 5.2 Near‐Field Optical Memory -- 5.3 Three‐Dimensional Optical Memory -- 5.4 Readout Using Infrared Absorption, Raman Scattering, and Refractive Index Changes -- References -- Chapter 6 Switches -- 6.1 Single‐Molecule Conductance Photoswitch -- 6.2 Optical Switch Based on Refractive Index Change -- 6.3 Magnetism -- References -- Chapter 7 Surface Properties -- 7.1 Surface Wettability -- 7.2 Selective Metal Deposition -- 7.3 Subwavelength Nanopatterning -- References -- Chapter 8 Polymers and Liquid Crystals -- 8.1 Polymers -- 8.2 Liquid Crystals -- References -- Chapter 9 Applications -- 9.1 Organic Field‐Effect Transistors (OFETs) -- 9.2 Metal Organic Frameworks (MOFs).
9.3 Super‐Resolution Fluorescence Microscopy -- 9.3.1 Control of Cycloreversion Quantum Yield -- 9.3.2 Fatigue Resistance -- 9.3.3 Photoswitching with Single‐Wavelength Visible Light -- 9.3.4 Super‐Resolution Bioimaging -- 9.4 Chemical Reactivity Control -- 9.5 Biological Activity -- 9.6 Color Dosimeters -- References -- Appendix A Synthesis Procedures of Typical Diarylethenes -- A.1 1,2‐Bis(2,4‐dimethyl‐5‐phenyl‐3‐thienyl)perfluorocyclopentene (7) [5-7] -- A.2 1,2‐Bis(2‐ethyl‐6‐phenyl‐1‐benzothiophene‐1,1‐ dioxide‐3‐yl)‐perfluorocyclopenetene (11) [8-10] -- References -- Index -- EULA.
Record Nr. UNINA-9910555115703321
Irie Masahiro  
Weinheim, Germany : , : Wiley-VCH GmbH, , [2021]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Diarylethene molecular photoswitches : concepts and functionalities / / Masahiro Irie
Diarylethene molecular photoswitches : concepts and functionalities / / Masahiro Irie
Autore Irie Masahiro
Pubbl/distr/stampa Weinheim, Germany : , : Wiley-VCH GmbH, , [2021]
Descrizione fisica 1 online resource (239 pages)
Disciplina 547.7
Soggetto topico Molecular machinery
ISBN 3-527-82286-0
3-527-34642-2
3-527-82285-2
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Cover -- Title Page -- Copyright -- Contents -- Preface -- Chapter 1 Introduction -- 1.1 General Introduction -- 1.2 Discovery of Diarylethene Molecular Photoswitches -- References -- Chapter 2 Reaction Mechanism -- 2.1 Basic Concepts -- 2.2 Theoretical Study -- 2.3 Reaction Dynamics -- 2.3.1 Cyclization Reaction -- 2.3.2 Cycloreversion Reaction -- References -- Chapter 3 Photoswitching Performance -- 3.1 Quantum Yield -- 3.1.1 Photocyclization Quantum Yield -- 3.1.2 Solvent Effect on Cyclization Quantum Yield -- 3.1.3 Photocycloreversion Quantum Yield -- 3.2 Thermal Stability -- 3.3 Fatigue Resistance -- 3.4 Fluorescence Property -- 3.4.1 Turn‐Off Mode Photoswitching -- 3.4.2 Turn‐On Mode Photoswitching -- 3.5 Chiral Property -- References -- Chapter 4 Photoswitchable Crystals -- 4.1 Dichroism -- 4.2 X‐Ray Crystallographic Analysis -- 4.3 Quantum Yield -- 4.4 Multicolored Systems and Nano‐Layered Periodic Structures -- 4.5 Fluorescent Crystals -- 4.6 Photomechanical Response -- 4.6.1 Surface Morphology Change -- 4.6.2 Reversible Shape Change -- 4.6.3 Bending Response of Mixed Crystals -- References -- Chapter 5 Memory -- 5.1 Single‐Molecule Memory -- 5.2 Near‐Field Optical Memory -- 5.3 Three‐Dimensional Optical Memory -- 5.4 Readout Using Infrared Absorption, Raman Scattering, and Refractive Index Changes -- References -- Chapter 6 Switches -- 6.1 Single‐Molecule Conductance Photoswitch -- 6.2 Optical Switch Based on Refractive Index Change -- 6.3 Magnetism -- References -- Chapter 7 Surface Properties -- 7.1 Surface Wettability -- 7.2 Selective Metal Deposition -- 7.3 Subwavelength Nanopatterning -- References -- Chapter 8 Polymers and Liquid Crystals -- 8.1 Polymers -- 8.2 Liquid Crystals -- References -- Chapter 9 Applications -- 9.1 Organic Field‐Effect Transistors (OFETs) -- 9.2 Metal Organic Frameworks (MOFs).
9.3 Super‐Resolution Fluorescence Microscopy -- 9.3.1 Control of Cycloreversion Quantum Yield -- 9.3.2 Fatigue Resistance -- 9.3.3 Photoswitching with Single‐Wavelength Visible Light -- 9.3.4 Super‐Resolution Bioimaging -- 9.4 Chemical Reactivity Control -- 9.5 Biological Activity -- 9.6 Color Dosimeters -- References -- Appendix A Synthesis Procedures of Typical Diarylethenes -- A.1 1,2‐Bis(2,4‐dimethyl‐5‐phenyl‐3‐thienyl)perfluorocyclopentene (7) [5-7] -- A.2 1,2‐Bis(2‐ethyl‐6‐phenyl‐1‐benzothiophene‐1,1‐ dioxide‐3‐yl)‐perfluorocyclopenetene (11) [8-10] -- References -- Index -- EULA.
Record Nr. UNINA-9910830965203321
Irie Masahiro  
Weinheim, Germany : , : Wiley-VCH GmbH, , [2021]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Molecular photoswitches : chemistry, properties, and applications / / edited by Zbigniew L. Pianowski
Molecular photoswitches : chemistry, properties, and applications / / edited by Zbigniew L. Pianowski
Pubbl/distr/stampa Hoboken, New Jersey : , : John Wiley & Sons, , [2022]
Descrizione fisica 1 online resource (1148 pages)
Disciplina 660.6
Soggetto topico Optical detectors
Nanocrystals
Molecular machinery
ISBN 3-527-82762-5
3-527-82760-9
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Cover -- Title Page -- Copyright -- Contents -- Foreword -- Preface -- Part I Interplay of Light and Matter -- Chapter 1 Physicochemical Aspects of Photoswitching -- 1.1 Introduction -- 1.2 Essentials of Photophysics -- 1.2.1 Quantum Yield -- 1.2.2 Photostationary State -- 1.2.3 Photoactivation -- 1.3 Spectroscopy of Photoswitching -- 1.4 Two Case Examples -- 1.4.1 Diarylethenes -- 1.4.2 Azobenzene and Its Derivatives -- References -- Chapter 2 Computational Methods and Photochromism -- 2.1 Introduction -- 2.2 Basics of Computational Photochemistry -- 2.2.1 Electronic Structure Methods -- 2.2.2 Photochemical Pathway and Conical Intersections -- 2.3 Applications: Photoswitching Mechanisms of Photochromic Compounds -- 2.3.1 Dihydroazulene Photochromism -- 2.3.2 Dihydropyrene Photochromism -- 2.4 Conclusions and Perspectives -- References -- Part II Chemical Classes of Molecular Photoswitches -- Chapter 3 Azobenzenes: The Quest for Visible Light Triggering -- 3.1 Introduction -- 3.1.1 Azobenzene and Its Physical Characteristics -- 3.2 Synthesis of Azobenzenes -- 3.2.1 Synthesis of Symmetrical Azobenzenes by Oxidation of Anilines -- 3.2.2 Azo Coupling -- 3.2.3 Mills Reaction -- 3.2.4 Modern Methods -- 3.3 Visible Light‐Activated Azobenzenes as Photoswitches -- 3.3.1 The Effect of Electron‐Donating Groups on Direct Photoexcitation -- 3.3.2 The Effect of Electron‐Withdrawing Groups on Direct Photoexcitation -- 3.3.3 Further Modification Leading to Visible Light Photoswitches -- 3.3.4 Complex Molecular and Supramolecular Systems Containing Azobenzenes -- 3.4 Applications of Azobenzenes in Biological Systems -- 3.5 Conclusion -- References -- Chapter 4 Diazocines: Photoswitches with Excellent Photophysical Properties and Inverted Stabilities -- 4.1 Photophysical Properties and Conformations of Parent Diazocine -- 4.2 Synthesis of Diazocines.
4.3 Heteroatom‐Bridged Diazocines -- 4.4 Applications of Diazocines -- 4.5 Conclusion -- Acknowledgments -- References -- Chapter 5 Azoheteroarenes -- 5.1 Introduction -- 5.2 Synthetic Strategies Toward Azoheteroarenes -- 5.3 Structure-Property Relationships -- 5.3.1 Conformational Effects on Thermal Half‐Life and n-π* Oscillator Strength -- 5.3.2 Choice of Heterocycle -- 5.3.3 6‐Membered Heterocycles -- 5.3.4 5‐Membered Heterocycles -- 5.3.5 Fused Heterocycles -- 5.3.6 External Influences -- 5.4 Photopharmacological Applications -- 5.4.1 Photoswitchable CENP‐E Inhibitor -- 5.4.2 Photoswitchable Ligands for a TRPA1 Chemo‐Optogenetic System -- 5.4.3 Further Pharmacological Applications of Azoheteroarenes -- 5.4.4 Glutathione Stability -- 5.5 Materials for Electronic Applications -- 5.5.1 Information Transfer -- 5.5.2 Switching in the Solid State -- 5.6 Azoheteroarenes in Supramolecular Chemistry -- 5.6.1 Modulation of Host-Guest Behavior -- 5.6.2 Photoswitchable Ligands -- 5.7 Energy‐Storage Materials -- 5.8 Final Remarks -- References -- Chapter 6 Arylhydrazones -- 6.1 Introduction -- 6.2 Acetyl/Aroyl‐Based and Pyridyl‐Based Photochromic Arylhydrazones -- 6.3 Phenylacetate‐Based Photochromic Arylhydrazones -- 6.4 Applications of Bistable Photochromic Hydrazones -- 6.4.1 Kinetic Trapping of Nanostructures -- 6.4.1.1 Liquid Crystal‐Based Smart Window -- 6.4.1.2 Shape‐Persistent Photoactuator -- 6.4.1.3 Photoresponsive Drug Release -- 6.4.2 Switching on Metal Surfaces -- 6.5 Conclusion -- References -- Chapter 7 Spiropyran - Multifaceted Chromic Compounds -- 7.1 Introduction -- 7.2 Thermochromic Spiropyrans -- 7.3 Relative Stability of the Merocyanine Isomers -- 7.4 Photochromic Properties -- 7.5 Fluorescence -- 7.6 Acidochromism -- 7.7 Redox‐Properties of Spiropyrans -- 7.8 Photochemistry in the Solid State -- 7.9 Conclusions -- Acknowledgments.
References -- Chapter 8 Diarylethenes - Molecules with Good Memory -- 8.1 Introduction -- 8.2 Photochemical Behavior of Diarylethenes -- 8.3 Distinctive Properties of Diarylethene Photoswitches -- 8.3.1 Thermal Stability of the Photoforms -- 8.3.2 Photofatigue Resistance and Chemical Stability -- 8.3.3 Molecular Geometry and Electronic Changes Upon Photoisomerization -- 8.4 Synthesis of Diarylethenes -- 8.5 Conclusions and Outlook -- References -- Chapter 9 Fulgides and Fulgimides -- 9.1 Introduction -- 9.2 Photoswitching Properties -- 9.3 Synthesis -- 9.4 Effects of Chemical Structure -- 9.5 Ultrafast Photoswitching Dynamics -- 9.5.1 Photoisomerization Mechanism -- 9.5.2 Tuning by Chemical Structure -- 9.5.3 Implications for New Derivatives -- 9.6 Application Examples -- 9.7 Conclusions -- References -- Chapter 10 The Negative Photochromism of Dimethyldihydropyrene π‐Switches -- 10.1 The Genesis -- 10.2 DHP as a Probe for Measuring Aromaticity -- 10.3 DHP as a Photoswitch -- 10.4 DHP as a "π‐Switch": Switching of Electrical Conductivity -- 10.5 DHP with Non‐methyl Internal Groups: The New‐Generation Switches -- 10.6 Multistate Systems with DHP and All‐Photonic Molecular Logic Gates -- 10.7 DHP Photoswitches Having Metal Ions -- 10.8 Light‐Triggered Molecular Recognition -- 10.9 Multi‐addressable Switches: Proton‐Triggered -- 10.10 Electrochemically Triggered -- 10.11 Effect of Fluorescent Moieties on the Switching -- 10.12 Fatigue Resistance Through Encapsulation -- 10.13 Cooperative Photoswitching -- References -- Chapter 11 Chiroptical Molecular Switches and Motors -- 11.1 Introduction -- 11.2 From Helical Overcrowded Alkenes to Unidirectional Rotary Molecular Motors -- 11.2.1 Chiroptical Molecular Switches -- 11.2.2 First‐ and Second‐Generation Molecular Motors -- 11.2.3 Fundamental Rotational Steps.
11.2.4 Third‐Generation Rotary Molecular Motors -- 11.3 Dynamics and Kinetics of Molecular Motors -- 11.3.1 Thermal Isomerization -- 11.3.2 Tuning the Speed of Rotation -- 11.3.3 Photoisomerization -- 11.3.4 Tuning the Absorption Wavelength -- 11.3.5 Photochemical Motors -- 11.3.6 Novel Motor Core Designs -- 11.4 Applications -- 11.4.1 Transfer of Chirality -- 11.4.2 Transfer of Motion -- 11.4.2.1 Coupled Rotary Systems -- 11.4.2.2 Translation of Motion -- 11.4.2.3 Control Over Motion -- 11.4.3 Biological Applications -- 11.4.4 Other Applications -- 11.5 Perspective and Outlook -- References -- Chapter 12 Stilbenes Revisited: Understanding the Mechanism of Mechanochemical Coupling -- 12.1 Introduction -- 12.2 Stiff Stilbene as a Molecular Force Probe -- 12.2.1 Introduction to Polymer Mechanochemistry -- 12.2.2 The Importance of Model Studies in Polymer Mechanochemistry -- 12.2.3 Stiff Stilbene Is an Effective Molecular Force Probe -- 12.2.4 How Intrinsic Mechanochemical Reactivity Is Measured with Stiff Stilbene -- 12.2.5 How Stiff Stilbene Advanced Our Understanding of Mechanochemistry -- 12.2.5.1 The Restoring Force of a Stretched Monomer Predicts Its Reactivity Independent of How the Force Is Generated -- 12.2.5.2 Experimental Validation of a Simple Model of Mechanochemical Kinetics Over Complex Energy Landscapes -- 12.2.5.3 The Diversity of Force-Reactivity Relationships -- 12.3 Stilbenes in Fundamental Studies of Energy Transduction by Molecular Motors -- 12.3.1 Introduction to Molecular Machines -- 12.3.2 Minimalist Design of a Molecular Rotor Realized Using Stilbenes -- 12.4 Summary -- References -- Chapter 13 Indigoid Photoswitches -- 13.1 Indigo -- 13.2 Thioindigo -- 13.3 Hemiindigo -- 13.4 Hemithioindigo -- 13.5 Iminothioindoxyls -- 13.6 Oxindoles and Isoindolinones -- References -- Chapter 14 Donor-Acceptor Stenhouse Adducts.
14.1 Introduction -- 14.2 DASA Synthesis -- 14.2.1 Molecular Photoswitch -- 14.2.2 Photoswitches in Macromolecules -- 14.3 Photoswitching Properties -- 14.3.1 Mechanism -- 14.3.2 The Absorption Properties -- 14.3.3 Dark Equilibria -- 14.3.4 Cyclization Efficiency Under Illumination -- 14.3.5 Electronic Effects -- 14.3.6 Steric Effects -- 14.3.7 Solvent Effects -- 14.3.8 Concentration Effects -- 14.3.9 Cyclization Under Exclusion of Light -- 14.3.10 Role of Water and Substituents on Cyclization and Ring Opening -- 14.4 Illustrative Applications -- 14.4.1 Polarity Change -- 14.4.2 Wavelength Selectivity -- 14.4.3 Sensing -- 14.4.4 Photothermal -- 14.5 Conclusion -- References -- Chapter 15 Imines as Threefold Functional Devices: Motional, Photochemical, Constitutional -- 15.1 Introduction -- 15.2 Imine Photoswitches -- 15.2.1 Electronic Spectra and Photochemical E/Z‐Isomerization of Imines -- 15.2.2 Thermal E/Z‐Isomerization of Imines -- 15.2.3 Imines as Photoswitches -- 15.2.4 Imines as Light‐Driven Molecular Motors -- 15.3 Acylhydrazone and Hydrazone Photoswitches -- 15.3.1 The Triple Dynamics of Imine‐Based Photoswitches -- 15.3.2 The Consequences of Pyridyl‐Hydrazones Shape Switching -- 15.3.2.1 Photo‐Responsive Receptor -- 15.3.2.2 Switchable Catalysis -- 15.3.2.3 Control of Supramolecular Polymerization -- 15.3.2.4 The Dynamics of Molecular Movements -- 15.3.2.5 Adaptation -- 15.3.3 Constitutional Dynamic Networks -- 15.3.3.1 Photoswitching of Constitutional Dynamic Networks -- 15.3.3.2 Photoswitching in Dynamic Covalent Chemistry: The Photodynamic Covalent Bond -- 15.4 Conclusion -- References -- Chapter 16 Norbornadiene/Quadricyclane (NBD/QC) and Conversion of Solar Energy -- 16.1 Introduction -- 16.2 Synthesis -- 16.2.1 Norbornadiene (NBD) -- 16.2.2 Quadricyclane (QC).
16.3 Molecular Engineering of the Norbornadiene/Quadricyclane Photoswitch Toward MOST Application.
Record Nr. UNINA-9910580253403321
Hoboken, New Jersey : , : John Wiley & Sons, , [2022]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Molecular photoswitches : chemistry, properties, and applications / / edited by Zbigniew L. Pianowski
Molecular photoswitches : chemistry, properties, and applications / / edited by Zbigniew L. Pianowski
Pubbl/distr/stampa Hoboken, New Jersey, : John Wiley & Sons, , [2022]
Descrizione fisica 1 online resource (1148 pages)
Disciplina 660.6
Soggetto topico Optical detectors
Nanocrystals
Molecular machinery
ISBN 3-527-35103-5
3-527-82762-5
3-527-82760-9
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Cover -- Title Page -- Copyright -- Contents -- Foreword -- Preface -- Part I Interplay of Light and Matter -- Chapter 1 Physicochemical Aspects of Photoswitching -- 1.1 Introduction -- 1.2 Essentials of Photophysics -- 1.2.1 Quantum Yield -- 1.2.2 Photostationary State -- 1.2.3 Photoactivation -- 1.3 Spectroscopy of Photoswitching -- 1.4 Two Case Examples -- 1.4.1 Diarylethenes -- 1.4.2 Azobenzene and Its Derivatives -- References -- Chapter 2 Computational Methods and Photochromism -- 2.1 Introduction -- 2.2 Basics of Computational Photochemistry -- 2.2.1 Electronic Structure Methods -- 2.2.2 Photochemical Pathway and Conical Intersections -- 2.3 Applications: Photoswitching Mechanisms of Photochromic Compounds -- 2.3.1 Dihydroazulene Photochromism -- 2.3.2 Dihydropyrene Photochromism -- 2.4 Conclusions and Perspectives -- References -- Part II Chemical Classes of Molecular Photoswitches -- Chapter 3 Azobenzenes: The Quest for Visible Light Triggering -- 3.1 Introduction -- 3.1.1 Azobenzene and Its Physical Characteristics -- 3.2 Synthesis of Azobenzenes -- 3.2.1 Synthesis of Symmetrical Azobenzenes by Oxidation of Anilines -- 3.2.2 Azo Coupling -- 3.2.3 Mills Reaction -- 3.2.4 Modern Methods -- 3.3 Visible Light‐Activated Azobenzenes as Photoswitches -- 3.3.1 The Effect of Electron‐Donating Groups on Direct Photoexcitation -- 3.3.2 The Effect of Electron‐Withdrawing Groups on Direct Photoexcitation -- 3.3.3 Further Modification Leading to Visible Light Photoswitches -- 3.3.4 Complex Molecular and Supramolecular Systems Containing Azobenzenes -- 3.4 Applications of Azobenzenes in Biological Systems -- 3.5 Conclusion -- References -- Chapter 4 Diazocines: Photoswitches with Excellent Photophysical Properties and Inverted Stabilities -- 4.1 Photophysical Properties and Conformations of Parent Diazocine -- 4.2 Synthesis of Diazocines.
4.3 Heteroatom‐Bridged Diazocines -- 4.4 Applications of Diazocines -- 4.5 Conclusion -- Acknowledgments -- References -- Chapter 5 Azoheteroarenes -- 5.1 Introduction -- 5.2 Synthetic Strategies Toward Azoheteroarenes -- 5.3 Structure-Property Relationships -- 5.3.1 Conformational Effects on Thermal Half‐Life and n-π* Oscillator Strength -- 5.3.2 Choice of Heterocycle -- 5.3.3 6‐Membered Heterocycles -- 5.3.4 5‐Membered Heterocycles -- 5.3.5 Fused Heterocycles -- 5.3.6 External Influences -- 5.4 Photopharmacological Applications -- 5.4.1 Photoswitchable CENP‐E Inhibitor -- 5.4.2 Photoswitchable Ligands for a TRPA1 Chemo‐Optogenetic System -- 5.4.3 Further Pharmacological Applications of Azoheteroarenes -- 5.4.4 Glutathione Stability -- 5.5 Materials for Electronic Applications -- 5.5.1 Information Transfer -- 5.5.2 Switching in the Solid State -- 5.6 Azoheteroarenes in Supramolecular Chemistry -- 5.6.1 Modulation of Host-Guest Behavior -- 5.6.2 Photoswitchable Ligands -- 5.7 Energy‐Storage Materials -- 5.8 Final Remarks -- References -- Chapter 6 Arylhydrazones -- 6.1 Introduction -- 6.2 Acetyl/Aroyl‐Based and Pyridyl‐Based Photochromic Arylhydrazones -- 6.3 Phenylacetate‐Based Photochromic Arylhydrazones -- 6.4 Applications of Bistable Photochromic Hydrazones -- 6.4.1 Kinetic Trapping of Nanostructures -- 6.4.1.1 Liquid Crystal‐Based Smart Window -- 6.4.1.2 Shape‐Persistent Photoactuator -- 6.4.1.3 Photoresponsive Drug Release -- 6.4.2 Switching on Metal Surfaces -- 6.5 Conclusion -- References -- Chapter 7 Spiropyran - Multifaceted Chromic Compounds -- 7.1 Introduction -- 7.2 Thermochromic Spiropyrans -- 7.3 Relative Stability of the Merocyanine Isomers -- 7.4 Photochromic Properties -- 7.5 Fluorescence -- 7.6 Acidochromism -- 7.7 Redox‐Properties of Spiropyrans -- 7.8 Photochemistry in the Solid State -- 7.9 Conclusions -- Acknowledgments.
References -- Chapter 8 Diarylethenes - Molecules with Good Memory -- 8.1 Introduction -- 8.2 Photochemical Behavior of Diarylethenes -- 8.3 Distinctive Properties of Diarylethene Photoswitches -- 8.3.1 Thermal Stability of the Photoforms -- 8.3.2 Photofatigue Resistance and Chemical Stability -- 8.3.3 Molecular Geometry and Electronic Changes Upon Photoisomerization -- 8.4 Synthesis of Diarylethenes -- 8.5 Conclusions and Outlook -- References -- Chapter 9 Fulgides and Fulgimides -- 9.1 Introduction -- 9.2 Photoswitching Properties -- 9.3 Synthesis -- 9.4 Effects of Chemical Structure -- 9.5 Ultrafast Photoswitching Dynamics -- 9.5.1 Photoisomerization Mechanism -- 9.5.2 Tuning by Chemical Structure -- 9.5.3 Implications for New Derivatives -- 9.6 Application Examples -- 9.7 Conclusions -- References -- Chapter 10 The Negative Photochromism of Dimethyldihydropyrene π‐Switches -- 10.1 The Genesis -- 10.2 DHP as a Probe for Measuring Aromaticity -- 10.3 DHP as a Photoswitch -- 10.4 DHP as a "π‐Switch": Switching of Electrical Conductivity -- 10.5 DHP with Non‐methyl Internal Groups: The New‐Generation Switches -- 10.6 Multistate Systems with DHP and All‐Photonic Molecular Logic Gates -- 10.7 DHP Photoswitches Having Metal Ions -- 10.8 Light‐Triggered Molecular Recognition -- 10.9 Multi‐addressable Switches: Proton‐Triggered -- 10.10 Electrochemically Triggered -- 10.11 Effect of Fluorescent Moieties on the Switching -- 10.12 Fatigue Resistance Through Encapsulation -- 10.13 Cooperative Photoswitching -- References -- Chapter 11 Chiroptical Molecular Switches and Motors -- 11.1 Introduction -- 11.2 From Helical Overcrowded Alkenes to Unidirectional Rotary Molecular Motors -- 11.2.1 Chiroptical Molecular Switches -- 11.2.2 First‐ and Second‐Generation Molecular Motors -- 11.2.3 Fundamental Rotational Steps.
11.2.4 Third‐Generation Rotary Molecular Motors -- 11.3 Dynamics and Kinetics of Molecular Motors -- 11.3.1 Thermal Isomerization -- 11.3.2 Tuning the Speed of Rotation -- 11.3.3 Photoisomerization -- 11.3.4 Tuning the Absorption Wavelength -- 11.3.5 Photochemical Motors -- 11.3.6 Novel Motor Core Designs -- 11.4 Applications -- 11.4.1 Transfer of Chirality -- 11.4.2 Transfer of Motion -- 11.4.2.1 Coupled Rotary Systems -- 11.4.2.2 Translation of Motion -- 11.4.2.3 Control Over Motion -- 11.4.3 Biological Applications -- 11.4.4 Other Applications -- 11.5 Perspective and Outlook -- References -- Chapter 12 Stilbenes Revisited: Understanding the Mechanism of Mechanochemical Coupling -- 12.1 Introduction -- 12.2 Stiff Stilbene as a Molecular Force Probe -- 12.2.1 Introduction to Polymer Mechanochemistry -- 12.2.2 The Importance of Model Studies in Polymer Mechanochemistry -- 12.2.3 Stiff Stilbene Is an Effective Molecular Force Probe -- 12.2.4 How Intrinsic Mechanochemical Reactivity Is Measured with Stiff Stilbene -- 12.2.5 How Stiff Stilbene Advanced Our Understanding of Mechanochemistry -- 12.2.5.1 The Restoring Force of a Stretched Monomer Predicts Its Reactivity Independent of How the Force Is Generated -- 12.2.5.2 Experimental Validation of a Simple Model of Mechanochemical Kinetics Over Complex Energy Landscapes -- 12.2.5.3 The Diversity of Force-Reactivity Relationships -- 12.3 Stilbenes in Fundamental Studies of Energy Transduction by Molecular Motors -- 12.3.1 Introduction to Molecular Machines -- 12.3.2 Minimalist Design of a Molecular Rotor Realized Using Stilbenes -- 12.4 Summary -- References -- Chapter 13 Indigoid Photoswitches -- 13.1 Indigo -- 13.2 Thioindigo -- 13.3 Hemiindigo -- 13.4 Hemithioindigo -- 13.5 Iminothioindoxyls -- 13.6 Oxindoles and Isoindolinones -- References -- Chapter 14 Donor-Acceptor Stenhouse Adducts.
14.1 Introduction -- 14.2 DASA Synthesis -- 14.2.1 Molecular Photoswitch -- 14.2.2 Photoswitches in Macromolecules -- 14.3 Photoswitching Properties -- 14.3.1 Mechanism -- 14.3.2 The Absorption Properties -- 14.3.3 Dark Equilibria -- 14.3.4 Cyclization Efficiency Under Illumination -- 14.3.5 Electronic Effects -- 14.3.6 Steric Effects -- 14.3.7 Solvent Effects -- 14.3.8 Concentration Effects -- 14.3.9 Cyclization Under Exclusion of Light -- 14.3.10 Role of Water and Substituents on Cyclization and Ring Opening -- 14.4 Illustrative Applications -- 14.4.1 Polarity Change -- 14.4.2 Wavelength Selectivity -- 14.4.3 Sensing -- 14.4.4 Photothermal -- 14.5 Conclusion -- References -- Chapter 15 Imines as Threefold Functional Devices: Motional, Photochemical, Constitutional -- 15.1 Introduction -- 15.2 Imine Photoswitches -- 15.2.1 Electronic Spectra and Photochemical E/Z‐Isomerization of Imines -- 15.2.2 Thermal E/Z‐Isomerization of Imines -- 15.2.3 Imines as Photoswitches -- 15.2.4 Imines as Light‐Driven Molecular Motors -- 15.3 Acylhydrazone and Hydrazone Photoswitches -- 15.3.1 The Triple Dynamics of Imine‐Based Photoswitches -- 15.3.2 The Consequences of Pyridyl‐Hydrazones Shape Switching -- 15.3.2.1 Photo‐Responsive Receptor -- 15.3.2.2 Switchable Catalysis -- 15.3.2.3 Control of Supramolecular Polymerization -- 15.3.2.4 The Dynamics of Molecular Movements -- 15.3.2.5 Adaptation -- 15.3.3 Constitutional Dynamic Networks -- 15.3.3.1 Photoswitching of Constitutional Dynamic Networks -- 15.3.3.2 Photoswitching in Dynamic Covalent Chemistry: The Photodynamic Covalent Bond -- 15.4 Conclusion -- References -- Chapter 16 Norbornadiene/Quadricyclane (NBD/QC) and Conversion of Solar Energy -- 16.1 Introduction -- 16.2 Synthesis -- 16.2.1 Norbornadiene (NBD) -- 16.2.2 Quadricyclane (QC).
16.3 Molecular Engineering of the Norbornadiene/Quadricyclane Photoswitch Toward MOST Application.
Record Nr. UNINA-9910686749403321
Hoboken, New Jersey, : John Wiley & Sons, , [2022]
Materiale a stampa
Lo trovi qui: Univ. Federico II
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Principles of brownian and molecular motors / / José Antonio Fornés
Principles of brownian and molecular motors / / José Antonio Fornés
Autore Fornés José Antonio
Edizione [1st ed. 2021.]
Pubbl/distr/stampa Cham, Switzerland : , : Springer, , [2021]
Descrizione fisica 1 online resource (XII, 194 p. 137 illus., 57 illus. in color.)
Disciplina 621.381
Collana Springer Series in Biophysics
Soggetto topico Brownian motors
Molecular machinery
Biophysics
ISBN 3-030-64957-1
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Brownian Ratchets and Molecular Motors -- The Fokker-Planck equation -- Biased Brownian Motion -- The Smoluchowski model -- Rotation of a dipole -- Ratchet dimer Brownian motor with Hydrodynamic interactions -- Fluctuations of the proton electromotive force across inner mitochondrial membrane -- Quantum Ratchets.
Record Nr. UNINA-9910484142603321
Fornés José Antonio  
Cham, Switzerland : , : Springer, , [2021]
Materiale a stampa
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Single molecule mechanics on a surface : gears, motors and nanocars / / edited by Francesca Moresco and Christian Joachim
Single molecule mechanics on a surface : gears, motors and nanocars / / edited by Francesca Moresco and Christian Joachim
Pubbl/distr/stampa Cham, Switzerland : , : Springer, , [2023]
Descrizione fisica 1 online resource (197 pages)
Disciplina 547.7
Collana Advances in Atom and Single Molecule Machines
Soggetto topico Molecular machinery
ISBN 3-031-16930-1
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Intro -- Preface -- Contents -- Unidirectional Motion of Single Molecules at Surfaces -- 1 Unidirectionality Caused by Local Gradients -- 1.1 Rotation -- 1.2 Translation -- 2 Intrinsic Unidirectionality -- 2.1 Rotation -- 2.2 Translation -- References -- DMBI-from n-Type Dopant to Molecular Machines -- 1 Introduction -- 2 1,3-Dimethyl-2-Phenyl-2,3-Dihydro-1H-Benzoimidazole (DMBI) as Building Block for Molecular Machinery -- 3 Varying the Molecular Structure of DMBI -- 4 Summary -- References -- Assembly, Diffusion and Rotation of Organic Molecules on a Gold Surface -- 1 Introduction -- 2 Theoretical Method -- 3 Adsorption of 4-acetylbiphenyl on Au(111) -- 3.1 Diffusion of a Single Molecule on Au(111) -- 3.2 Formation of Supramolecular Assemblies -- 4 Adsorption of DMBI-P on Au(111): Formation of a Unidirectional Molecular-Rotor -- 5 Conclusions -- References -- From Early Prototypes to On-Surface Drivable Single Molecule Nano-vehicles -- 1 Introduction -- 2 STM and Controlled Manipulations of Single Objects -- 3 Evidence of a Lateral Translation Motion on a Surface -- 3.1 First Nano-vehicle on a Surface -- 3.2 Translational Motion of a Nano-vehicle -- 4 Controlled Altitudinal Rotations and Wheel Dimers -- 4.1 Indirect Evidence of an Altitudinal Rotation -- 4.2 Direct Evidence of an Altitudinal Rotation -- 5 Nanocar Race I: Manipulation of Nano-vehicles -- 5.1 The French Nano-vehicle Engaged in the Race -- 5.2 The Five Other Nano-vehicles Engaged in the 1st Race -- 6 A Motorized Nano-vehicle -- 7 Conclusion -- References -- On-Surface Translational Activity of Porphyrin Chromophore Molecules -- 1 Introduction -- 2 Molecular Design and Synthesis -- 3 X-ray Crystallography -- 4 Scanning Tunneling Microscopy of Prototype Molecules -- 5 Trajectory of NC5 During Nanocar Race II -- 6 Concluding Remarks -- References.
Controlled Driving of a Single-Molecule Anthracene-Based Nanocar on a Metal Surface -- 1 Introduction -- 2 Solution Synthesis of Anthracene-Based Nanocars -- 3 Preparing of the Race Track -- 4 Cl-Substituted Anthracene-Based Nanocar -- 5 CH3-Substituted Anthracene-Based Nanocar -- 5.1 First Step: Getting off the Line (Lateral Manipulation) -- 5.2 An Insight: The Importance of the CO-Functionalized Tip -- 5.3 Second Step: Going Somewhere/Driving Mechanism -- 6 Conclusions -- References -- Azulene Based Nanocars -- 1 Introduction -- 2 Moving Azulene-Based Nanostructures on the Au(111) Surface -- 3 Modifying the Lateral Groups Connected to the Azulene Core -- 4 Influence of the Cyano Group -- 5 The Role of the Side Groups -- 6 Summary and Outlook -- References -- Towards a Molecular Mechanical Calculator -- 1 Introduction -- 2 Mechanical Calculator Molecular Design on a Stepped Surface -- 3 A Molecule Gears Train: Experimental on the Terrace of the Pb(111) Surface -- 4 Experimental Molecular Gearing Effect Across a Monoatomic Step Edge -- 5 Experimentations on the Carry Propagation -- 6 Conclusion -- References -- Atomistic Modelling of Energy Dissipation in Nanoscale Gears -- 1 Introduction -- 2 Simulation Methodology -- 3 Results -- 3.1 Diamond Solid-State Gear on Substrates -- 3.2 Graphene Nanodisk-Molecule Gear Interaction -- 4 Conclusions and Outlook -- References -- Molecular Networks and Surface Engineering for Single Molecule Studies: From Spatial Separation to Emergent Properties -- 1 Introduction -- 2 Host-guest Architectures on Surfaces -- 2.1 Nanoporous Networks -- 2.2 Host-guest Architectures Formed by TMA -- 3 Templates for Trapping and Studying Single Molecules -- 3.1 Porous Networks -- 3.2 Pre-patterned Surfaces -- 4 Self-Assembled Networks for Single Molecule Studies and Cooperative Behavior -- 5 Conclusion -- References:.
Record Nr. UNINA-9910624303203321
Cham, Switzerland : , : Springer, , [2023]
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Lo trovi qui: Univ. Federico II
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