Diarylethene Molecular Photoswitches

A comprehensive review to the synthesis, properties, and applications of diarylethene-based molecular photoswitches

Diarylethene Molecular Photoswitches: Concept and Functionalities provides the fundamental concepts of molecular photoswitches and includes information on how the bistable photoswitches of diarylethenes modulate the functions of materials and biological activities. Written by Masahiro Irie (the inventor of photochromic diarylethene compound), the book explores the reaction mechanism, photoswitching performance, photoswitchable crystals, and the myriad applications of diarylethenes based photoswitches.

This book offers academics, chemists, and engineers an essential resource for understanding the molecular photoswitches and provides a guide to the development of new photoresponsive materials. The author explores the applications based on diarylethene and its dirivatives to Field-Effect Transistors, Metal-Organic Frameworks including nanoparticles, super-resolution fluorescence microscopies, drug release, and self-healing materials. This important book:

• Offers a guide to diarylethene derivatives, the most widely studied compounds worldwide among the photochromic compounds
• Includes the basic concepts of molecular photoswitches
• Explores the myraid applications grounded in diarylethene and its derivatives

• Presents an authortative text from the inventor of the photochromic diarylethene compound

  Written for materials scientists, organic, polymer, and physical chemists, and electronics engineers, Diarylethene Molecular Photoswitches offers an introduction to the topic and includes recent developments in the field.

Auteur
Masahiro Irie is an emeritus professor of Kyushu University. He received his B.S. and M.S. from Kyoto University and his Ph.D. in radiation chemistry from Osaka University. In 1968 he joined the Faculty of Engineering, Hokkaido University, as a research associate and started his research in photochemistry. He was the faculty members of at Osaka University, Kyushu University and Rikkyo University. He has been conducting research on molecular photoswitch systems for more than 40 years. In the middle of the 1980s he discovered thermally irreversible and fatigue resistant photochromic diarylethenes. Prof. Irie has authored over 500 scientific publications and has received numerous scientific awards, including Porter Medal (European Photochemistry Association, The Inter-American Photochemistry Society and Asian and oseanian Photochemsitry association), Theodor-Foerster-Preis (GDCh and Deutsche Bunsen-Gesellschaft, Germany) and The Chemical Society of Japan Award.

Contenu

1. Introduction
   1.1 General Introduction
   1.2 Discovery of Diarylethene Molecular Photoswitches
   
   2. Reaction Mechanism
      2.1 Basic Concepts
      2.2 Theoretical Study
      2.3 Reaction Dynamics
      2.3.1 Cyclization Reaction
      2.3.2 Cycloreversion Reaction
   3. Photoswitching Performance
      3.1 Quantum Yield
      3.1.1 Photocyclization Quantum Yield
      3.1.2 Solvent Effect on Cyclization Quantum Yield
      3.1.3 Photocycloreversion Quantum Yield
      3.2 Thermal Stability
      3.3 Fatigue Resistance
      3.4 Fluorescence Property
      3.4.1 Turn-off Mode Photoswitching
      3.4.2 Turn-on Mode Photoswitching
      3.5 Chiral Property
   4. Photoswitchable Crystals
      4.1 Dichroism
      4.2 X-Ray Crystallographic Analysis
      4.3 Quantum Yield
      4.4 Multicoloured Systems and Nano-layered Periodic Structures
      4.5 Fluorescent Crystals
      4.6 Photomechanical Response
      4.6.1 Surface Morphology Change
      4.6.2 Reversible Shape Change
      4.6.3 Bending Response of Mixed Crystals
   5. Memory
      5.1 Single-Molecule Memory
      5.2 Near-Field Optical Memory
      5.3 Three-Dimensional Optical Memory
      5.4 Readout using Infrared (IR) Absorption, Raman Scattering and Refractive Index Changes
   6. Switches
      6.1 Single-Molecule Conductance Photoswitch
      6.2 Optical Switch based on Refractive Index Change
      6.3 Magnetism
   7. Surface Properties
      7.1 Surface Wettability
      7.2 Selective Metal Deposition
      7.3 Subwavelength Nanopatterning
   8. Polymers and Liquid Crystals
      8.1 Polymers
      8.2 Liquid Crystals
   9. Applications
      9.1 Organic Field-Effect Transistors (OFETs)
      9.2 Metal Organic Frameworks (MOFs)
      9.3 Super-resolution Fluorescence Microscopy
      9.3.1 Control of Cycloreversion Quantum Yield
      9.3.2 Fatigue Resistance
      9.3.3 Photoswitching with Single-Wavelength Visible Light
      9.3.4 Super-resolution Bioimaging
      9.4 Chemical Reactivity Control
      9.5 Biological Activity
      9.6 Colour Dosimeters
   10. Appendix