Theoretical and Computational Photochemistry

Theoretical and Computational Photochemistry
Author: García Iriepa Cristina
Publisher: Elsevier
Total Pages: 520
Release: 2023-04-21
Genre: Business & Economics
ISBN: 0323972225

Theoretical and Computational Photochemistry: Fundamentals, Methods, Applications and Synergy with Experimental Approaches provides a comprehensive overview of photoactive systems and photochemical processes. After an introduction to photochemistry, the book discusses the key computational chemistry methods applied to the study of light-induced processes over the past decade, and further outlines recent research topics to which these methods have been applied. By discussing the synergy between experimental and computational data, the book highlights how theoretical studies could facilitate understanding experimental findings. This helpful guide is for both theoretical chemists and experimental photochemistry researchers interested in utilizing computational photochemistry methods for their own work. Reviews the fundamentals of photochemistry, helping those new to the field in understanding key concepts Provides detailed guidance and comparison of computational and theoretical methods, highlighting the suitability of each method for different case studies Outlines current applications to encourage discussion of the synergy between experimental and computational data, and inspiring further application of these methods to other photochemical processes

Computational Photochemistry

Computational Photochemistry
Author: Massimo Olivucci
Publisher: Elsevier
Total Pages: 369
Release: 2005-10-20
Genre: Science
ISBN: 0080455190

Computational Photochemistry, Volume 16 provides an overview of general strategies currently used to investigate photochemical processes. Whilst contributing to establishing a branch of computational chemistry that deals with the properties and reactivity of photoexcited molecules, the book also provides insight into the conceptual and methodological research lines in computational photochemistry. Packed with examples of applications of modelling of basic photochemical reactions and the computer-aided development of novel materials in the field of photodegradation (paints), photoprotection (sunscreens), color regulation (photochromic devices) and fluorescent probes, this book is particularly useful to anyone interested in the effect of light on molecules and materials. * Provides an overview of computational photochemistry, dealing with principles and applications* Demonstrates techniques that can be used in the computer-aided design of novel photo responsive materials* Written by experts in computational photochemistry

Photochemistry

Photochemistry
Author: Maurizio Persico
Publisher: Springer
Total Pages: 267
Release: 2018-05-04
Genre: Science
ISBN: 3319899724

This book offers an introduction to photochemistry for students with a minimal background in physical chemistry and molecular quantum mechanics. The focus is from a theoretical perspective and highlights excited state dynamics. The authors, experienced lecturers, describe the main concepts in photochemical and photophysical processes that are used as a basis to interpret classical steady-state experimental results (essentially product branching ratios and quantum yields) and the most advanced time-resolved techniques. A significant portion of the content is devoted to the computational techniques present in quantum chemistry and molecular dynamics.With its short summaries, questions and exercises, this book is aimed at graduate students, while its theoretical focus differentiates it from most introductory textbooks on photochemistry.

Theoretical Chemistry for Electronic Excited States

Theoretical Chemistry for Electronic Excited States
Author: Michael A Robb
Publisher: Royal Society of Chemistry
Total Pages: 240
Release: 2018-03-02
Genre: Science
ISBN: 1788014359

Over the past few decades, experimental excited state chemistry has moved into the femtochemistry era, where time resolution is short enough to resolve nuclear dynamics. Recently, the time resolution has moved into the attosecond domain, where electronic motion can be resolved as well. Theoretical chemistry is becoming an essential partner in such experimental investigations; not only for the interpretation of the results, but also to suggest new experiments. This book provides an integrated approach. The three main facets of excited-state theoretical chemistry; namely, mechanism, which focuses on the shape of the potential surface along the reaction path, multi-state electronic structure methods, and non-adiabatic dynamics, have been brought together into one volume. Theoretical Chemistry for Electronic Excited States is aimed at both theorists and experimentalists, involved in theoretical chemistry, in electronic structure computations and in molecular dynamics. The book will provide both with the knowledge and understanding to discover ways to work together more closely through its unified approach.

Computational Methods in Photochemistry

Computational Methods in Photochemistry
Author: Andrei G. Kutateladze
Publisher: CRC Press
Total Pages: 530
Release: 2005-05-05
Genre: Science
ISBN: 1420030582

Addressing critical aspects of computational modeling in photochemistry, Molecular Methods in Photochemistry is designed to familiarize researchers and practitioners with state-of-the-art computational methods to predict the reactivity of excited molecules. It provides practical guidelines and examples for the modeling of excited states and describ

Reviews in Computational Chemistry, Volume 15

Reviews in Computational Chemistry, Volume 15
Author: Kenny B. Lipkowitz
Publisher: John Wiley & Sons
Total Pages: 364
Release: 2009-09-22
Genre: Science
ISBN: 0470126191

THIS VOLUME, WHICH IS DESIGNED FOR STAND-ALONE USE IN TEACHING AND RESEARCH, FOCUSES ON QUANTUM CHEMISTRY, AN AREA OF SCIENCE THAT MANY CONSIDER TO BE THE CENTRAL CORE OF COMPUTATIONAL CHEMISTRY. TUTORIALS AND REVIEWS COVER * HOW TO OBTAIN SIMPLE CHEMICAL INSIGHT AND CONCEPTS FROM DENSITY FUNCTIONAL THEORY CALCULATIONS, * HOW TO MODEL PHOTOCHEMICAL REACTIONS AND EXCITED STATES, AND * HOW TO COMPUTE ENTHALPIES OF FORMATION OF MOLECULES. A FOURTH CHAPTER TRACES CANADIAN RESEARCH IN THE EVOLUTION OF COMPUTATIONAL CHEMISTRY. ALSO INCLUDED WITH THIS VOLUME IS A SPECIAL TRIBUTE TO QCPE.FROM REVIEWS OF THE SERIES "Reviews in Computational Chemistry proves itself an invaluable resource to the computational chemist. This series has a place in every computational chemist's library."-Journal of the American Chemical Society

Photophysics and Photochemistry of a BODIPY‐Based Photosensitizer

Photophysics and Photochemistry of a BODIPY‐Based Photosensitizer
Author: Karl Michael Ziems
Publisher: Springer
Total Pages: 139
Release: 2019-04-24
Genre: Science
ISBN: 3658261889

Karl Michael Ziems investigates a meso-mesityl-2,6-Iodine substituted Boron Dipyrromethene (BODIPY) dye regarding its functionality as photosensitizer in a two-component light-driven hydrogen evolution. The author uses quantum chemical calculations performed at the time-dependent density functional (TDDFT) and multi-state restricted active space perturbation theory through second-order (MS-RASPT2) level of theory. The light-induced processes associated with the formation of the active photosensitizer, i.e., by means of charge separation, as well as the population of undesired degradative pathways are elucidated. Hereby, the two proposed and investigated mechanisms are based on a heavy atom effect of iodine in the (excited) singlet/triplet manifold and preliminary reduction (of the dye) by a sacrificial electron donor and subsequent photoexcitation.

Next Generation Quantum Theory of Atoms in Molecules

Next Generation Quantum Theory of Atoms in Molecules
Author: Samantha Jenkins
Publisher: Springer Nature
Total Pages: 237
Release: 2023-07-01
Genre: Science
ISBN: 9819903297

This book begins by providing a simplified version of the computational quantum chemistry sufficient to calculate the wavefunctions that are the basic input of NG-QTAIM. Enough basic (scalar) QTAIM theory is provided to understand the later chapters. In addition, our developments of scalar QTAIM are presented and activities at various levels of difficulty are provided for the readership to facilitate understanding. The topological origins of Quantum Theory of Atoms in Molecules (QTAIM) before explaining the highlights and consequences of the developments of Next-Generation QTAIM (NG-QTAIM) that is a 3-D vector-based realization of QTAIM. The book compiles all developments and extensions of Next-Generation QTAIM in one place for easy reference for those engaged in theoretical/computational chemistry. Essential insights into molecular switch functioning not available from the energy barrier or any scalar measures are presented along with a new measure to assess the efficiency of rotary molecular motors. The book also discusses how the treatment of external forces such as electric fields and laser irradiation is included in NG-QTAIM. This book benefits theoretical/computational chemists/physics/engineers, students (graduate and undergraduate) and chemical/pharmaceutical industry researchers who carry out chemical computations in universities and industries. Where appropriate, Target Learning Outcomes and Further Reading are provided along with a list of the scientific goals to be addressed in addition to a glossary table in the summary sections. Where applicable each chapter concludes by outlining benefits, limitations and suggestions for further investigations. All our NG-QTAIM publications are available as pre-prints in the form of .pdf files along with the corresponding supplementary materials at our BEACON website www.beaconresearch.org.

Computational Chemistry

Computational Chemistry
Author: Errol G. Lewars
Publisher: Springer Science & Business Media
Total Pages: 474
Release: 2007-05-08
Genre: Science
ISBN: 0306483912

Computational chemistry has become extremely important in the last decade, being widely used in academic and industrial research. Yet there have been few books designed to teach the subject to nonspecialists. Computational Chemistry: Introduction to the Theory and Applications of Molecular and Quantum Mechanics is an invaluable tool for teaching and researchers alike. The book provides an overview of the field, explains the basic underlying theory at a meaningful level that is not beyond beginners, and it gives numerous comparisons of different methods with one another and with experiment. The following concepts are illustrated and their possibilities and limitations are given: - potential energy surfaces; - simple and extended Hückel methods; - ab initio, AM1 and related semiempirical methods; - density functional theory (DFT). Topics are placed in a historical context, adding interest to them and removing much of their apparently arbitrary aspect. The large number of references, to all significant topics mentioned, should make this book useful not only to undergraduates but also to graduate students and academic and industrial researchers.

Computational Photocatalysis

Computational Photocatalysis
Author: Dmitri Kilin
Publisher:
Total Pages: 368
Release: 2021-02
Genre: Science
ISBN: 9780841235540

Photochemical reactions and the underlying photophysical principles play key roles in the rational design of efficient systems for energy conversion and storage. This volume on interfaces contains fundamental theory, computational models, and applications for real materials. Edited by experts with a deep knowledge of the community, the volume will be useful to computational chemists, materials scientists, physical chemists, and especially those working in energy and nanomaterials.