竹红菌甲素衍生物13-SO3Na-DDHA电化学及光诱导还原的研究

doi:10.7517/j.issn.1674-0475.1994.02.126

影像科学与光化学 ›› 1994, Vol. 12 ›› Issue (2): 126-132.DOI: 10.7517/j.issn.1674-0475.1994.02.126

竹红菌甲素衍生物13-SO₃Na-DDHA电化学及光诱导还原的研究

王维波, 安静仪, 李学萍, 肖绪瑞

中国科学院感光化学研究所北京 100101

收稿日期:1993-04-14 修回日期:1993-09-24 出版日期:1994-05-20 发布日期:1994-05-20
通讯作者: 王维波

INVESTIGATION ON THE ELECTROCHEMICAL AND PHOTOINDUCED REDUCTION OF 13-SO₃Na-DDHA

WANG WEI-BO, AN JING-YI, LI XUE-PING, XIAO XU-RUI

Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P. R. China

Received:1993-04-14 Revised:1993-09-24 Online:1994-05-20 Published:1994-05-20

摘要/Abstract

摘要： 本工作研究了化合物13-SO₃Na-DDHA在不同pH的缓冲溶液中的电化学氧化还原行为。实验证明:化合物中羰基的还原电位与pH之间存在线性关系,其直线的斜率为60mV/pH.并证明了此过程为一步两电子、两质子还原过程:Q+2H⁺+2e=QH₂.DMF作为非质子溶剂,具有很好的稳定自由基的作用。向缓冲溶液中加入DMF后,化合物13-SO₃Na-DDHA为两步单电子还原过程,相应溶液中的光诱导电子转移吸收光谱证实了以上电化学的结果。

关键词: 竹红菌甲素磺化物, 醌类电化学, 光诱导还原

Abstract: The electrochemical redox behavior of compound 13-SO₃Na-DDHA in buffer solution of different pH values repertively has been studied. There is a linear relationship between the reduction potential of carbonyl group and pH value.The slope of this line is about 60mV/pH. This result corresponds to one step 2-electron,2-proton reduction process:Q+2H⁺+2e=QH₂. As a polar but non-proton solvent,DMF is favorable for radicalstabilization. If DMF is added to a buffer solution,this compound may be reduced by twostep one-electron processes.

Key words: hypocrellin a sulfonate, quinone electrochemistry, photoinduced reduction

王维波, 安静仪, 李学萍, 肖绪瑞. 竹红菌甲素衍生物13-SO₃Na-DDHA电化学及光诱导还原的研究[J]. 影像科学与光化学, 1994, 12(2): 126-132.

WANG WEI-BO, AN JING-YI, LI XUE-PING, XIAO XU-RUI. INVESTIGATION ON THE ELECTROCHEMICAL AND PHOTOINDUCED REDUCTION OF 13-SO₃Na-DDHA[J]. Imaging Science and Photochemistry, 1994, 12(2): 126-132.

竹红菌甲素衍生物13-SO₃Na-DDHA电化学及光诱导还原的研究

INVESTIGATION ON THE ELECTROCHEMICAL AND PHOTOINDUCED REDUCTION OF 13-SO₃Na-DDHA

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