Chemical Spectroscopy And Photochemistry In The Vacuum Ultraviolet
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Author | : Camille Sandorfy |
Publisher | : Springer Science & Business Media |
Total Pages | : 599 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9401021538 |
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.
Author | : Ralf Zimmermann |
Publisher | : John Wiley & Sons |
Total Pages | : 448 |
Release | : 2021-07-06 |
Genre | : Science |
ISBN | : 3527335102 |
Provides comprehensive coverage of laser-induced ionization processes for mass spectrometry analysis Drawing on the expertise of the leading academic and industrial research groups involved in the development of photoionization methods for mass spectrometry, this reference for analytical scientists covers both the theory and current applications of photo-induced ionization processes. It places widely used techniques such as MALDI side by side with more specialist approaches such as REMPI and RIMS, and discusses leading edge developments in ultrashort laser pulse desorption, to give readers a complete picture of the state of the technology. Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications starts with a complete overview of the fundamentals of the technique, covering the basics of the gas phase ionization as well as those of laser desorption and ablation, pulse photoionization, and single particle ionization. Numerous application examples from different analytical fields are described that showcase the power and the wide scope of photo ionization in mass spectrometry. -The first general reference book on photoionization techniques for mass spectrometry -Examines technologies and applications of gas phase resonance-enhanced multiphoton ionization mass spectrometry (REMPI-MS) and gas phase resonance ionization mass spectrometry (RIMS) -Provides complete coverage of popular techniques like MALDI -Discusses the current and potential applications of each technology, focusing on process and environmental analysis Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications is an excellent book for spectroscopists, analytical chemists, photochemists, physical chemists, and laser specialists.
Author | : |
Publisher | : |
Total Pages | : 800 |
Release | : 1968 |
Genre | : Weights and measures |
ISBN | : |
Author | : United States. National Bureau of Standards. Technical Information and Publications Division |
Publisher | : |
Total Pages | : 788 |
Release | : 1978 |
Genre | : Government publications |
ISBN | : |
Author | : United States. National Bureau of Standards |
Publisher | : |
Total Pages | : 788 |
Release | : 1969 |
Genre | : Government publications |
ISBN | : |
Author | : United States. National Bureau of Standards |
Publisher | : |
Total Pages | : 788 |
Release | : 1978 |
Genre | : Government publications |
ISBN | : |
Author | : United States. National Bureau of Standards |
Publisher | : |
Total Pages | : 544 |
Release | : 1968 |
Genre | : Washington (D.C.) |
ISBN | : |
Author | : United States. National Bureau of Standards |
Publisher | : |
Total Pages | : 540 |
Release | : 1968 |
Genre | : Government publications |
ISBN | : |
Author | : United States. National Bureau of Standards. Technical Information and Publications Division |
Publisher | : |
Total Pages | : 1116 |
Release | : 1978 |
Genre | : Government publications |
ISBN | : |
Author | : National Institute of Standards and Technology (U.S.) |
Publisher | : |
Total Pages | : 532 |
Release | : 1975 |
Genre | : |
ISBN | : |