Connects principles, processes, and experimental techniques with current research in the continuously expanding field of photochemistry and photophysics
Photochemistry and Photophysics covers a wide spectrum of concepts in photochemistry and photophysics, introducing principles, processes, and experimental techniques, with a wealth of examples of current applications and research spanning natural photosynthesis, photomedicine, photochromism, luminescent sensors, energy conversion and storage, and sustainability issues.
In this Second Edition, several chapters have been revised considerably and others have been almost entirely rewritten. A number of schemes and figures have been added, and the reference list at the end of each chapter has been extended and updated.
Clearly structured, the first part of the text discusses the formation, properties, and reactivity of excited states of inorganic and organic molecules and supramolecular species, and the second part focuses on photochemical and photophysical processes in natural and artificial systems. Readers will learn how photochemical and photophysical processes can be exploited for novel, unusual, and unexpected applications.
Written by world-renowned experts in the field, Photochemistry and Photophysics includes information on:
- Formation, electronic structure, properties, chemical reactivity, and radiative and nonradiative decay of electronically excited states
- Fundamental concepts and theoretical approaches concerning energy transfer and electron transfer
- Peculiar light absorption/emission spectra and the photochemical properties of the various families of organic molecules and metal complexes
- Equipment, techniques, procedures, and reference data concerning photochemical and photophysical experiments, including warnings to avoid mistakes and misinterpretations
- Relationships between photochemical, photophysical, and electrochemical properties of molecules that enable interconversion between light and chemical energy
With an appropriate mix of introductory, intermediate, and advanced content, this is an ideal textbook resource for related undergraduate and postgraduate courses. The text is also valuable for scientists already active in photochemical and photophysical research who will find helpful suggestions to undertake novel scientific projects.
Tabella dei contenuti
INTRODUCTION
Photochemistry and Photophysics in Science and Technology
Historical Notes
A New Dimension of Chemistry and Physics
The Nature of Light
Absorption of Light
Quantum Yield, Efficiencies, and Excited-State Reactivity
ELEMENTARY MOLECULAR ORBITAL THEORY
Introduction
The Hydrogen Atom
Polyelectronic Atoms
From Atoms to Molecules
Electronic Structure of Homonuclear Diatomic Molecules
Electronic Structure of Heteronuclear Diatomic Molecules
Simple Polyatomic Molecules and Elements of Group Theory
Typical Organic Molecules
Transition Metal Complexes
LIGHT ABSORPTION AND EXCITED-STATE DEACTIVATION
Light Absorption
Jablonski Diagram
Excited-State Deactivation
Chemical Reactions
Kinetic Aspects
Solvent and Temperature Effects
Selected Molecules
Semiconductors
EXCITED STATES: PHYSICAL AND CHEMICAL PROPERTIES
Excited State as a New Molecule
Lifetime
Energy
Geometry
Dipole Moments
Electron Transfer
Proton Transfer
Excimers and Exciplexes
FROM MOLECULES TO SUPRAMOLECULAR SYSTEMS
Supramolecular (Multicomponent) Systems and Large Molecules
Electronic Interaction in Mixed-Valence Compounds
Electronic Interaction in Donor-Acceptor Complexes
Electronic Stimulation and Electronic Interaction in the Excited State
Formation of Excimers and Exciplexes in Supramolecular Systems
QUENCHING AND SENSITIZATION PROCESSES IN MOLECULAR AND SUPRAMOLECULAR SPECIES
Introduction
Bimolecular Quenching
Quenching and Sensitization Processes in Supramolecular Systems
Energy Transfer
Role of the Bridge
Catalyzed Deactivation
MOLECULAR ORGANIC PHOTOCHEMISTRY
Introduction
Alkenes and Related Compounds
Aromatic Compounds
Carbonyl Compounds
Photochemistry of Other Organic Compounds
PHOTOCHEMISTRY AND PHOTOPHYSICS OF METAL COMPLEXES
Metal Complexes
Photophysical Properties
Photochemical Reactivity
Relationships between Electrochemistry and Photochemistry
Luminescent Metal Complexes
Photochemical Processes
INTERCONVERSION OF LIGHT AND CHEMICAL ENERGY BY BIMOLECULAR REDOX PROCESSES
Light as a Reactant
Light as a Product
Conversion of Light into Chemical Energy
Chemiluminescence
Electrochemiluminescence
Light Absorption Sensitizers
Light Emission Sensitizers
LIGHT-POWERED MOLECULAR DEVICES AND MACHINES
Molecules, Self-Organization, and Covalent Synthetic Design
Light Inputs and Outputs: Reading, Writing, and Erasing
Molecular Devices for Information Processing
Molecular Devices Based on Energy Transfer
Molecular Devices Based on Electron Transfer
Light-Powered Molecular Machines
NATURAL AND ARTIFICIAL PHOTOSYNTHESIS
Energy for Spaceship Earth
Natural Photosynthesis
Artificial Photosynthesis
Water Splitting by Semiconductor Photocatalysis
EXPERIMENTAL TECHNIQUES
Apparatus
Steady-State Absorption and Emission Spectroscopy
Time-Resolved Absorption and Emission Spectroscopy
Absorption and Emission Measurements with Polarized Light
Reaction Quantum Yields and Actinometry
Other Techniques
LIGHT CONTROL OF BIOLOGICALLY RELEVANT PROCESSES
Introduction
Vision
Light, Skin, and Sunscreens
Photochemical Damage in Living Systems
Therapeutic Strategies Using Light
Photocatalysis in Environmental Protection
DNA Photocleavage and Charge Transport
Fluorescence
Bioluminescence
TECHNOLOGICAL APPLICATIONS OF PHOTOCHEMISTRY AND PHOTOPHYSICS
Introduction
Photochromism
Luminescent Sensors
Optical Brightening Agents
Atmospheric Photochemistry
Solar Cells
Electroluminescent Materials
Polymers and Light
Light for Chemical Synthesis
GREEN (PHOTO)CHEMISTRY
Definitions, Origins, and Motivations
Photochemistry for Green Chemical Synthesis
Photocatalysis
Photocatalysis in Synthesis
Photocatalytic Pollution Remediation
Use of Solar Energy in Green Synthesis
RESEARCH FRONTIERS
Introduction
Aggregation-Induced Emission
Phosphorescence from Purely Organic Materials by Crystal Design
Synthesis of a 2D Polymer
Photocontrolled Relative Unidirectional Transit of Nonsymmetric Molecular Wire through a Molecular Ring
Molecular Rotary Motors Powered by Visible Light via Energy Transfer
Cooperation and Interference in Multifuncion Compounds
Singlet Fission
One-Color Photochromic System
Photonic Modulation of Electron Transfer with Switchable Phase Inversion
Dye-Sensitized Photoelectrosynthesis Cells (DSPECs)
Index
Circa l’autore
Vincenzo Balzani is Emeritus Professor of Chemistry at the University of Bologna, Italy. His scientific activity is documented by eight books and ~650 scientific papers in the fields of photochemistry, supramolecular chemistry, molecular machines, and solar energy conversion.
Paola Ceroni is Professor at the University of Bologna. She has published ~250 scientific papers.
Alberto Juris is former Associate Professor of General and Inorganic Chemistry at the University of Bologna.