Chemical Spectroscopy and Photochemistry in the Vacuum-Ultraviolet

Chemical Spectroscopy and Photochemistry in the Vacuum-Ultraviolet
Author :
Publisher : Springer Science & Business Media
Total Pages : 599
Release :
ISBN-10 : 9789401021531
ISBN-13 : 9401021538
Rating : 4/5 (31 Downloads)

Book Synopsis Chemical Spectroscopy and Photochemistry in the Vacuum-Ultraviolet by : Camille Sandorfy

Download or read book Chemical Spectroscopy and Photochemistry in the Vacuum-Ultraviolet written by Camille Sandorfy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is probably safe to predict that the future of chemistry is linked to the excited states of molecules and to other short lived species, ions and free radicals. Molecules have only one ground state but many excited states. However large the scope of normal, ground state chemistry might be, above and beyond it lies the world of excited states, each one having its own chemis try. The electronic transitions leading to the excited states, either discrete of continuous, are examined in molecular elec tronic spectroscopy. Electronic spectroscopy is the queen of all spectroscopies: for if we have the resolution we have everything. Vnfortunately, the chemist who is interested in the structure and reactions of larger molecules must often renounce all that infor mation. The spectra are complex and often diffuse; resolution does not always help. To understand such spectra he must look at whole families of molecules; to some extent structural analogies help. Let us call this chemical spectroscopy and handle it with care. In order to understand the properties of molecules we also need theory. We know that molecular problems are, in principle, soluble by the methods of quantum mechanics. Present time quan tum chemistry is able to provide a nearly accurate description of not too large molecules in their ground states. It is probablY again safe to predict that the future of quantum chemistry is connected with molecular excited states or, generally spoken, the accurate handling of the open-shell problem.


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