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New Frontiers in Photochromism

New Frontiers in Photochromism

Masahiro Irie

•

Yasushi Yokoyama

Editors

New Frontiers in Photochromism

•

Takahiro Seki

Editors Masahiro Irie Professor Department of Chemistry Rikkyo University Tokyo, Japan

Yasushi Yokoyama Professor Department of Advanced Materials Chemistry Yokohama National University Kanagawa, Japan

Takahiro Seki Professor Department of Molecular Design & Engineering Nagoya University Aichi, Japan

ISBN 978-4-431-54290-2 ISBN 978-4-431-54291-9 (eBook) DOI 10.1007/978-4-431-54291-9 Springer Tokyo Heidelberg New York Dordrecht London Library of Congress Control Number: 2013939352 © Springer Japan 2013 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Exempted from this legal reservation are brief excerpts in connection with reviews or scholarly analysis or material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Duplication of this publication or parts thereof is permitted only under the provisions of the Copyright Law of the Publisher’s location, in its current version, and permission for use must always be obtained from Springer. Permissions for use may be obtained through RightsLink at the Copyright Clearance Center. Violations are liable to prosecution under the respective Copyright Law. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. While the advice and information in this book are believed to be true and accurate at the date of publication, neither the authors nor the editors nor the publisher can accept any legal responsibility for any errors or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the material contained herein. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)

Preface

Photochromism is defined as a reversible transformation of a chemical species between two forms having different absorption spectra induced in one or both directions by photoirradiation. Chemical bond rearrangement during the phototransformation induces electronic as well as geometrical structure changes of the molecules. This process has captivated many chemists and physicists over several decades. The reversible molecular structure changes upon photoirradiation can be applied to various photonic devices, such as erasable memory media, photo-optical