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

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2002,（10）
• 页码范围: 1102-1108
• 页数: 7页
• 语种: 英文

摘要

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 armmaaic pendant show significantly different photochromic properties. This may be due to the π-π orbital interaction between the polyaronatic pendant and the open photomerocyanine form of spiropyran.The results obtained are very useful in the molecule design area.