Radiationless Transitions
Published on 2. December 2012
440 pages
978-0-323-15027-9 (ISBN)
Description
Radiationless Transitions is a critical discussion of research studies on the theory and experiments in radiationless transitions. This book is composed of nine chapters, and begins with discussions on the theory and experiment of photophysical processes of single vibronic levels and/or single rovibronic levels. The subsequent chapters deal with the spectroscopic investigations of intramolecular vibrational relaxation; the dynamics of molecular excitation by light; and the photophysical processes of small molecules in condensed phase. The discussions then shift to the high pressure effects on molecular luminescence and the internal conversion involving localized excitations, presenting one qualitative and one quantitative example, as well as the intersystem crossing with localized excitations. A chapter explores the energy transfer processes that occur after a molecule in solution is excited by light, with an emphasis on solid solutions in which the large amplitude molecular motion is largely quenched. This chapter also looks into the liquid solutions in which the molecules can translate and rotate under the influence of fluctuating forces from the liquid. The concluding chapter focuses on ultrafast processes. Researchers in the fields of physics, chemistry, and biology will benefit from this book.
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Sheng H. Lin
Radiationless Transitions
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01/1980
Academic Press
€65.00
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Content
List of ContributorsPreface1 Experimental Measurement of Electronic Relaxation of Isolated Small Polyatomic Molecules from Selected States I. Introduction II. Theoretical Background III. Experimental Studies on Small Triatomic and Tetra-Atomic Molecules IV. Experimental Studies on Six-Atom and Larger Molecules References2 Rotational Fine Structure in Radiationless Transitions I. Introduction II. The Excited State Rotational Distribution III. Isolated Molecule Conditions and Collisional Energy Redistribution IV. Experimental Evidence for a Rotational Effect in Nonradiative Processes V. Rotational State Matrix Elements and Selection Rules VI. The Rate Constant for Nonradiative Transitions VII. Energy Matching in Isolated Molecules VIII. Vibrational Effects in Nonradiative Transitions IX. The Decay of a Multilevel System X. Model Calculations XI. Conclusion References3 On Rotational Effects in Radiationless Processes in Polyatomic Molecules I. Introduction II. The Diatomic Molecule Case III. The Polyatomic Molecule Case IV. Modeling the Effect of Intermanifold Coriolis Coupling V. Rotational Effects in Spin-Orbit Coupling VI. Angular Momentum Conservation in Polyatomic Fragmentation Reactions VII. Concluding Remarks Appendix: Tensor and Angular Momentum Algebra References4 Vibrational Relaxation of Isolated Molecules I. Introduction II. Theoretical Models III. Experimental Studies IV Concluding Remarks Appendix References5 Dynamic Aspects of Molecular Excitation by Light I. Introduction II. Basic Premises III. Selective Excitation IV Spectral Analysis of Coupling Schemes V. Summary: Perspectives and Predictions References6 Spectroscopic and Time Resolved Studies of Small Molecule Relaxation in the Condensed Phase I. Introduction II. Spectra and the Physical Interpretation of Molecular Lineshapes III. Large Amplitude Vibrational and Electronic Motion IV. Electronic Solvation and Adiabatic Potential Changes V. Radiationless Transitions Observed by Polarization and Fluorescence Line Narrowing VI. Direct Vibrational Relaxation VII. Vibrational Relaxation through Real Intermediate States VIII. Atomic Relaxation IX. Vibrational Relaxation in Triatomics X. Vibrational Energy Transfer XI. Observation of Missing States References7 High Pressure Studies of Luminescence Efficiency I. Introduction II. Internal Conversion III. Intersystem Crossing IV. Delocalized Excitation-Doped ZnS V. Energy Transfer VI. Viscosity Effects on Luminescence Efficiency References8 Relaxation of Electronically Excited Molecular States in Condensed Media I. Introduction II. Dynamical Effects in Condensed Phases III. Experimental Methods IV. Vibrational Relaxation in Optically Excited States V. Electronic Relaxation VI. Summary and Prospects References9 Some Considerations of Theory and Experiment in Ultrafast Processes I. Introduction II. Time Evolution of a Relaxing System III. Spectral Line Shapes IV. Vibrational Relaxation V. Migration of Particles VI. Memory Function Appendix I Appendix II ReferencesIndex
