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This open access book introduces the science of the new materials, soft crystals, by showing various interesting examples. Different from conventional hard and stable crystals, the soft crystals respond to gentle stimuli such as vapor exposure and rubbing but maintain their structural order. In this book, their exhibition of remarkable visual changes in their shape, color, and luminescence is described. Through the chapters, historical background, recent remarkable developments, and future prospects are described concisely. This book helps readers to understand a new concept of materials that have the characteristics of stimulus-sensitive soft matter and finely controlled crystals and to design novel materials with the characteristics.
The English translation of this book from its Japanese language original manuscript was done with the help of artificial intelligence (machine translation by the service DeepL.com). The text has subsequently been revised further by a professional copy editor in order to refine the work stylistically.
Sommario
Background and Overview.- Classification and Definition of "Soft Crystals".- Theoretical Background of Photophysical Properties.- Vapochromic Soft Crystals Constructed with Metal Complexes.- Luminescent Mechanochromism and the Photosalient Effect of Aryl Gold(I) Isocyanide Complexes.- Elastic and Plastic Soft Crystals with Superelasticity, Ferroelasticity, and Superplasticity.- Triboluminescence of Lanthanide Complexes. Thermosalient Phenomena in Molecular Crystals: A Case Study of Representative Molecules.- Soft Crystal Chemiluminescence Systems Using Organic Peroxides.- Molecular Crystal Calculation Prospects for Structural Phase Transitions.- Approach of Electronic Structure Calculations to Crystal.- Toward the Applications of Soft Crystals.
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Masako Kato received her Ph.D. from Nagoya University in 1986. After she worked at Institute for Molecular Science and Kyoto University, she joined the Department of Chemistry at Nara Women¿s University as an assistant professor in 1989 and was promoted to an associate professor in 1996. During 1998¿2001, she was also engaged in a PRESTO research. From 2006 to 2021, she had been a professor at Faculty of Science, Hokkaido University. In 2017, she started a KAKENHI project for Scientific Research on Innovative Areas, ¿Soft Crystals¿. Since April 2021, she is a professor at Kwansei Gakuin University.
Kazuyuki Ishii received his Ph.D. from Tohoku University in 1996 and subsequently worked as a research associate at Tohoku University from 1996 to 2006. He joined Institute of Industrial Science of The University of Tokyo as an associate professor in 2006 and has been a full professor of The University of Tokyo since 2012. In 2019, he was a deputy director of Institute of Industrial Science. From 2017, he is a secretary of a KAKENHI project for Scientific Research on Innovative Areas, Soft Crystals.
