Relaxation Processes in Electronically Excited Molecules (A) Intramolecular Excimers (B) Excited State Proton Transfer PDF Download

Author: Phaedon Avouris
Publisher:
ISBN:
Category : Excited state chemistry
Languages : en
Pages : 530

View

Book Description

Author: J. Fünfschilling
Publisher: Springer Science & Business Media
ISBN: 9400908636
Category : Science
Languages : en
Pages : 282

View

Book Description
Relaxation phenomena of excited molecular states are abundant in all nature. They mediate such key processes as photochemical reactions or even the pathways of ordinary chemical reactions. However, for a long time the main research in electronic relaxation processes was concerned with anorganic solids, in part because of their great technological importance (photography, semiconductors ... ) in part also because these compounds were the "workhorses" of the solid state physicists. In the last 30 years, there was a steadily increasing interest in organic molecular systems, first in molecular crystals and later in all forms of molecular solids (glasses, polymers, membranes, ... ). The present volume combines papers on quite different types of relaxation phenomena: the type of solid studied, the electronic states involved, the physical processes responsible for the relaxations are all different. Nevertheless, after reading this book, a more clear and complete picture of the phenomenon "relaxa tion" emerges that proves that this volume is more than just a collection of individual articles. The volume starts with the paper "Spin-lattice and spin-spin relaxation in photo-excited triplet states in molecular crystals" by Jan Schmidt. Even in these seemingly simple systems of isolated guest molecules in a single crystal host, the relaxation phenomena are quite involved and a very thorough investigation is necessary to find the key relaxation processes. The end of the article provides a bridge to the following paper: it treats interactions of two molecules (dimers), where resonant interactions become important and lead to new, characteristic relaxation processes.

Author: Minyung Lee
Publisher:
ISBN:
Category :
Languages : en
Pages : 500

View

Book Description

Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 818

View

Book Description

Author: Jacek Waluk
Publisher: John Wiley & Sons
ISBN: 9780471297079
Category : Science
Languages : en
Pages : 400

View

Book Description
A unique look at some of the hottest topics in photophysics and photochemistry today The study of molecules in excited states has exploded over the past decade, providing new insights into conformational changes in organic molecules and opening up research opportunities for scientists and professionals in chemistry, physics, biology, medicine, and materials engineering. Using conformational analysis as a unifying concept, this important new work provides readers with a cohesive and cutting-edge overview of this fascinating and challenging field. From conformational changes accompanying photoinduced electron transfer to elementary photophysical and photochemical processes in living systems, the most representative and challenging topics are carefully gleaned from the vast literature, highlighting major conceptual problems along with the relevant experimental techniques. Authoritative, detailed contributions from both experimentalists and theoreticians include coverage of: * Conformational changes in intramolecular excited state electron transfer * Conformational aspects of excited state proton transfer * The novel topic of solute-solvent friction in chemical reactions * Mechanisms and structural aspects of exciplex formations * Conformational aspects of organic photochemistry * Calculations of excited state conformational properties

Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 642

View

Book Description

Author: D. Bryce-Smith
Publisher: Royal Society of Chemistry
ISBN: 0851861555
Category : Reference
Languages : en
Pages : 666

View

Book Description
The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 34 covers literature published from July 2001 to June 2002. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.

Author: Oak Ridge National Laboratory
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1324

View

Book Description

Author: Graham Richard Fleming
Publisher:
ISBN:
Category :
Languages : en
Pages : 398

View

Book Description

Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 756

View

Book Description