Imaging Science and Photochemistry ›› 2012, Vol. 30 ›› Issue (2): 150-158.DOI: 10.7517/j.issn.1674-0475.2012.02.150

• Application and development • Previous Articles    

The Study of Extended π Conjugation Systems in Photochromic Naphthopyran Compounds

MENG Qing-hua1, FANG Yong-zeng2, WANG Zhen1, HUANG De-yin1   

  1. 1. School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P.R.China;
    2. Hefei Lucky Science & Technology Industry Company Ltd., Hefei 230041, Anhui, P.R.China.
  • Received:2011-11-24 Revised:2011-12-27 Online:2012-03-15 Published:2012-03-15

Abstract: The naphthopyrans compounds were structurally modified to extend π conjugation system by introducing N containing donating groups, metallocenyl groups, heterofused groups and thioxanthene groups. The photochromic properties and the conplanarity of substitutes to the main plane were discussed as well.

Key words: naphthopyran, π conjugation, conplanarity, photochromism

CLC Number: