1.

Record Nr.

UNINA9910799218003321

Autore

Donoshita Masaki

Titolo

Design of Crystal Structures Using Hydrogen Bonds on Molecular-Layered Cocrystals and Proton–Electron Mixed Conductor / / by Masaki Donoshita

Pubbl/distr/stampa

Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2024

ISBN

981-9970-62-8

Edizione

[1st ed. 2024.]

Descrizione fisica

1 online resource (XII, 79 p. 57 illus., 49 illus. in color.)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5061

Disciplina

548

Soggetti

Chemistry, Inorganic

Solid state chemistry

Chemical bonds

Supramolecular chemistry

Materials - Analysis

Condensed matter

Inorganic Chemistry

Solid-State Chemistry

Chemical Bonding

Supramolecular Chemistry

Materials Characterization Technique

Phase Transition and Critical Phenomena

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

General Introduction -- Rational Construction of Molecular Electron-conducting Nanowires Encapsulated in Proton-conducting Matrix in a Charge Transfer Salt -- Drastic Rearrangement of Self-assembled Hydrogen-bonded Tapes in a Molecular Crystal -- Various Stacking Patterns of Two-Dimensional Molecular Assemblies in Hydrogen-Bonded Cocrystals: Insight into Competitive Intermolecular Interactions and Control of Stacking Patterns -- General Conclusion.

Sommario/riassunto

This thesis addresses the design of crystal structures using hydrogen bonds. In particular, it focuses on the design of functionalities and the



control over the packing of molecular assemblies, based on molecular designs. Firstly, the synthesis and evaluation of a proton–electron mixed conducting charge transfer salt is reported. Focusing on the difference in the strength of hydrogen bonds and weaker intermolecular interactions, a system was rationally designed and constructed where electron-conducting molecular wires were encapsulated within a proton-conducting matrix. Next, the investigation of structural phase transitions in a cocrystal consisting of hydrogen-bonded two-dimensional molecular assemblies is reported. Drastic rearrangements of hydrogen-bonded molecular assemblies in the cocrystal led to single-crystal-to-single-crystal phase transitions, resulting in anisotropic changes in the crystal shape. Furthermore, chemical modification ofa component molecule in the cocrystal is reported. The modification afforded control over the stacking patterns of the two-dimensional molecular assemblies, i.e., sheets, and the mechanism was discussed considering the intersheet intermolecular interactions and molecular motion. It is suggested that hydrogen bonds are beneficial to construct molecular assemblies in molecular crystals because of their strength and well-defined directionality, and the consideration of coexisting weaker intermolecular interactions can lead to the design of whole crystal structures and, hence, functionalities. This thesis benefits students and researchers working on solid-state chemistry by presenting various methods for characterizing and evaluating the properties of molecular solids.



2.

Record Nr.

UNIORUON00381532

Autore

ESPAGNE, Adelphe

Titolo

A-nuit=aujourd'hui, interprété au moyen des notions de l'histoire et de la linguistique : communication faite le 30 août 1879 ... / par Adelphe Espagne

Pubbl/distr/stampa

21 p. ; 21 cm

Edizione

[Paris : Maisonneuve]

Descrizione fisica

Estratto da: Revue des langues romanes

Disciplina

440

Soggetti

Lingua francese - Lessico

Lingua di pubblicazione

Francese

Formato

Materiale a stampa

Livello bibliografico

Monografia