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1. |
Record Nr. |
UNINA9910402055903321 |
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Titolo |
Country review Burkina Faso |
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Pubbl/distr/stampa |
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Houston, TX, : Commercial Data International |
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Descrizione fisica |
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Soggetti |
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Ecology |
Economic history |
Politics and government |
Social conditions |
Periodicals. |
Burkina Faso Economic conditions 1987- Periodicals |
Burkina Faso Environmental conditions Periodicals |
Burkina Faso Politics and government 1987-2014 Periodicals |
Burkina Faso Social conditions Periodicals |
Burkina Faso |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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2. |
Record Nr. |
UNINA9910485602903321 |
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Autore |
Kato Tatsuhisa |
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Titolo |
Vibronic Coupling Density : Understanding Molecular Deformation / / by Tatsuhisa Kato, Naoki Haruta, Tohru Sato |
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Pubbl/distr/stampa |
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Singapore : , : Springer Nature Singapore : , : Imprint : Springer, , 2021 |
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ISBN |
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Edizione |
[1st ed. 2021.] |
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Descrizione fisica |
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1 online resource (122 pages) |
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Collana |
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SpringerBriefs in Molecular Science, , 2191-5415 |
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Disciplina |
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Soggetti |
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Quantum chemistry |
Atomic structure |
Molecular structure |
Chemical structure |
Quantum Chemistry |
Atomic and Molecular Structure and Properties |
Structure And Bonding |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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1. Introduction: What is understanding chemistry? -- 2. How the chemical processes are qualitatively explained by the simple molecular orbital theory -- 3. How the chemical processes are visualized and quantified by VCD and VCC -- 4. Relationship between Fukui function and VCD -- 5. Transition dipole moment density -- 6. Outlooks for new chemical systems by VCD and VCC -- 7. Appendix. |
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Sommario/riassunto |
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This book introduces vibronic coupling density and vibronic coupling constant analyses as a way to understand molecular structure and chemical reactions. After quantum study, the behavior of electrons circulating around nuclei led to the principal concept that underlies all explanations in chemistry. Many textbooks have given plausible explanations to clarify molecular structure—for example, the bond elongation of ethylene under anionization and the nonplanar structure of ammonia. Frontier molecular orbital concepts were proposed to visualize the path of chemical reactions, and conventional explanations gave students a familiarity with molecular structures in terms of the electronic state. By contrast, this book offers a more rational and more |
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convincing path to understanding. It starts from the ab initio molecular Hamiltonian and provides systematic, rational approaches to comprehend chemical phenomena. In this way, the book leads the reader to a grasp of the quantitative evaluation of the force applied under the molecular deformation process. As well, guidelines are offered for integrating the traditional “hand-waving” approach of chemistry with more rational and general VCD and VCC alternatives along with the outlook for newly functionalized chemical systems. |
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