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Synthesis of New Spiropyrans With a Polyaromatic or Heteroaromatic Pendant and Their Photochromic Behaviors

✍ Scribed by Mei-Li Pang; Yun-Tong Nie; Yong-Mei Wang; Ji-Ben Meng; Ji-Tao Wang

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 400 KB
Volume: 20
Category: Article
ISSN: 0256-7660
DOI: 10.1002/cjoc.20020201032

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✦ Synopsis

Abstract

A series of spiropyrans with a polyaromatic or heteroaromatic pendant was synthesized conveniently. Their photochromic behaviors were investigated with the aid of absorption spectral measurements. The results indicated that the compounds with the same parent spiropyran but different aromatic pendant show significantly different photochromic properties. This may be due to the π‐π orbital interaction between the polyaromatic pendant and the open photomerocyanine form of spiropyran. The results obtained are very useful in the molecule design area.

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