Reversible Single-Crystal-to-Single-Crystal Photochemical Formation and Thermal Cleavage of a Cyclobutane Ring
SCIE
SCOPUS
- Title
- Reversible Single-Crystal-to-Single-Crystal Photochemical Formation and Thermal Cleavage of a Cyclobutane Ring
- Authors
- Goutam Kumar Kole; Tatsuhiro Kojima; Kawano, M; Jagadese J. Vittal
- Date Issued
- 2014-02-17
- Publisher
- WILEY-V C H VERLAG GMBH
- Abstract
- A [2+2] cycloaddition reaction has been observed in a number of solids. The cyclobutane ring in a photodimerized material can be cleaved into olefins by UV light and heat. The high thermal stability of the metal-organic salt K2SDC (H2SDC=4,4'-stilbenedicarboxylic acid) has been successfully utilized to investigate the reversible cleavage of a cyclobutane ring. The two polymorphs of K2SDC undergo reversible cyclobutane formation by UV light and cleavage by heat in cycles. Of these, one polymorph retains its single-crystal nature during the reversible processes. Polymorphs are known to show different physical properties and chemical reactivities. This work reveals that the retention of single-crystal nature is strongly associated with the packing of molecules, which is controlled by kinetics and thermodynamics. The photoemissive nature of the products makes this as a promising material for photoswitches and optical data storage devices.
- Keywords
- C-C bond cleavage; coordination polymers; cycloaddition; polymorphism; solid-state reactions; 2+2 CYCLOADDITION REACTION; SOLID-STATE; COORDINATION NETWORK; SWITCHES; PHOTODIMERIZATION; TRANSFORMATION; DIARYLETHENES; PHOTOCHROMISM; MEMORIES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/14317
- DOI
- 10.1002/ANIE.201306746
- ISSN
- 1433-7851
- Article Type
- Article
- Citation
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol. 53, no. 8, page. 2143 - 2146, 2014-02-17
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