影像科学与光化学 ›› 1995, Vol. 13 ›› Issue (3): 207-213.DOI: 10.7517/j.issn.1674-0475.1995.03.207

• 研究论文 • 上一篇    下一篇

一类以双酚A为连接链的电子给体—受体体系的合成及分子内电子转移反应研究

李顺来, 董晓阳, 许慧君   

  1. 中国科学院感光化学研究所, 北京 100101
  • 收稿日期:1994-10-19 修回日期:1995-01-18 出版日期:1995-08-20 发布日期:1995-08-20
  • 通讯作者: 许慧君
  • 基金资助:
    国家自然科学基金

SYNTHESIS OF DONOR-BA-ACCEPTER SYSTEMS AND INVESTIGATION OF PHOTOINDUCED INTRA MOLECULAR ELECTRON TRANSFER

LI SHUN-LAI, DONG XIAO-YANG, XU HUI-JUN   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Bijing100101, P. R. China
  • Received:1994-10-19 Revised:1995-01-18 Online:1995-08-20 Published:1995-08-20

摘要: 本文合成了一类以9,10-二甲氧基蒽为给体,双酚A为连接链连接不同受体的电子给体受体新体系,通过稳态荧光光谱及时间分辨荧光光谱研究了它们的光致电子转移反应,并通过测定氧化还原电位,计算出各电子给个受体体系电子转移反应的自由能变化。结果表明,在这一类体系中,光致电子转移速率常数与自由能变化关系符合Rehm-Weller关系式。

关键词: 光致电子转移, 蒽, 双酚A

Abstract: A series of donor-accepter systems linked by bisphenol A were synthesized in this paper.The electron donor is 9,10-dimethoxyanthracene.The dependence of photo induced electron transfer rates on the exothermicity of the reaction was studied.The rate constantsof photo induced electron transfer in these systems first increase with decreasing free energychange up to A △G value of-1 eV,thereafter the rate constants of electron transfer remainalmost unchanged as the value of △G decreases.The result is in consistent with Rehm-Weller relationship.

Key words: electron transfer, anthracence, bisphenol A To whom correspondence should be addressed.