影像科学与光化学 ›› 1988, Vol. 6 ›› Issue (4): 10-16.DOI: 10.7517/j.issn.1674-0475.1988.04.10

• 研究论文 • 上一篇    下一篇

三乙酰基丙酮合锰(Ⅲ)的敏化光分解光化学的研究

沈玉全, 曹怡, 喻长军, 刘蕙平   

  1. 中国科学院感光化学研究所, 北京
  • 收稿日期:1987-05-08 修回日期:1987-11-06 出版日期:1988-11-20 发布日期:1988-11-20
  • 基金资助:
    国家自然科学基金

PHOTOCHEMICAL STUDY OF DISSOCIATION-REDUCTION REACTION OF MANGANESE (Ⅲ) ACETYL-ACETONATE SENSITIZED

SHEN YU-QUAN, CAO YI, YU CHANG-JUN, LIU HUI-PING   

  1. Institute of Photographic Chemistry, Academia Sinica, Beijing
  • Received:1987-05-08 Revised:1987-11-06 Online:1988-11-20 Published:1988-11-20

摘要: 研究了含硫堇的三乙酰基丙酮合锰(Ⅲ)[简称Mn(AA)3]溶液的紫外光谱的变化。Mn(AA)3通过中间体Mn(AA)2,最终还原形成Mn(Ac)2。观察了氧对反应的影响。Mn(AA)3的这一敏化分解还原过程与文献报道的它的直接光解反应是一致的,还讨论了反应机理,并为1100nm处的带,即Mn(AA)3的电荷转移吸收带提供了新的证据。

关键词: 三乙酰基丙酮合锰(Ⅲ), 光敏化, 金属配合物

Abstract: The UV spectra of Mn(AA)2 were studied in the presence of thionine under irradiation of 560 nm light. Mn(AA)2 is reduced and through an intermediate, Mn(AA)2, Mn(Ac)2 was obtained as a final product. Oxygen effects on the reaction were also investigated. The sensitized dissociation-reduction process of Mn(AA)2 is identical with its direct photolysis reported in literature. The mechanism of the reaction is discussed and a new evidence of 1100 nm band as a charge transfer absorption band of Mn(AA)2 is observed.

Key words: trisacetylacetonate manganese (Ⅲ), photosensitization, metal complex