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Photochemical pKa-Modulation and Gated Photochromic Properties of a Novel Diarylethene Switch (1999)

Kawai, Stephen H. ; Gilat, Sylvain L. ; Lehn, Jean-Marie

Weinheim : Wiley-Blackwell

Liebigs Annalen 1999 (1999), S. 2359-2366

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Details

ISSN: 1434-193X

Keywords: Photochromism ; Diarylethenes ; Molecular devices ; Proton switches ; Merocyanines ; Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The unsymmetrical dithienylethene photochrome 1a exhibits proton-gated photochromic properties as well as novel chemical reactivity. The dimethoxylated derivative 9a represents a light-triggered proton switch whose dissociation constant is increased by a factor of 16 upon photochemical cyclization to 9b. Such compounds are of potential interest for multiplexing photochemical systems.

Additional Material: 6 Ill.

Type of Medium: Electronic Resource

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