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New functions of metal-Schiff Base compounds as photoreactor

New functions of metal-Schiff Base compounds as photoreactor
金属席夫碱化合物作为光反应器的新功能
批准号:
09440224
负责人:
FUJII Yuki
金额:
$8.96万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
1997
资助国家:
日本
项目状态:
已结题
起止时间:
1997 至 1999

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中文摘要
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英文摘要
1. Photoreaction of 1st transition metal complexes of Schiff bases was investigated. Manganese(III) and VO(IV) complexes of N, N' -bis(salicylidene)phenylenediamine were found to be activated by visible light, results in the photocyclization of Schiff base ligand. The products were separated by HPLC and characterized to be highly fluorescent 2-(2-hydroxyphenyl)benzimidazole by ィイD11ィエD1H, ィイD113ィエD1C NMR. The reaction mechanism was investigated by various methods. The formation of manganese(II) was observed by EPR but no organic radical was detected. However, the photoreaction was retarded by the addition of radical scavenger. Schiff base ligand itself was inactive to the photocyclization, but found to be highly fluorescent in the solid state. The fluorescent property was investigated in detail including thin film's property.The photoreaction of manganese(III)-Schiff base was applied to the photocleavage of DNA. 5-(trimethylammoniomethyl)-derivatives strongly binds with DNA and cleaved DNA by irradiation of visible light. The reaction conditions were investigated in detail. In relation to this, hydrolytic DNA scission by Cu(II)-polyamine complexes was also investigated.
期刊论文(24)
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会议论文
Toshio Kawasaki: "Effects of Diamine Bridge Length and Substituentson the Spectral Properties of N,N'-Bis(α-substituted Salicylidene) diaminesin solution"J.Chem.Soc.,PerkinTrans.,. 2. 193-198 (1999)
Toshio Kawasaki:“二胺桥长度和取代基对 N,N-双(α-取代水杨基)二胺溶液光谱性质的影响”J.Chem.Soc.,PerkinTrans.,2. 193-198 (1999)
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通讯作者:
Xiang Shi Tan: "Crystal Structure and Ferromagnetic Behaviour of a Novel Tetranuclear Copper(II) Complex with an Open Cubane-like Cu4O4Framework"J.Chem.Soc.,Dalton.Commun.. 2415-2416 (1999)
向世坦:“具有开放类古巴烷Cu4O4框架的新型四核铜(II)络合物的晶体结构和铁磁行为”J.Chem.Soc.,Dalton.Commun.. 2415-2416 (1999)
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X. S. Tan, Y. Fujii, T. Sato, Y. Nakano, and M. Yashiro: "The crystal structures of glycylglycine and glycine complexes of cis, ci-s1, 3, 5-Triaminocyclohexane-copper(II) as reaction intermediates of metal-promoted peptide hydrolysis"J. C. S.、 Chem. Commu
X. S. Tan、Y. Fujii、T. Sato、Y. Nakano 和 M. Yashiro:“作为反应中间体的甘氨酰甘氨酸和顺式、顺式1、3、5-三氨基环己烷-铜(II)的甘氨酸络合物的晶体结构金属促进的肽水解”J. C. S., Chem. Commu
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F. Sakamoto, M. Izumo, K. Hashimoto, and Y. Fujii: "Study of optimum condition for synthesis of [γ-32P]ATP with high specific radio activity"J. Radioanal. Nucl. Chem.. 239. 423-427 (1999)
F. Sakamoto、M. Izumo、K. Hashimoto 和 Y. Fujii:“合成具有高比放射性活性的 [γ-32P]ATP 的最佳条件的研究”J. Radioanal。 427 (1999)
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24
    Study of functional model for metal containing hydrases by new tripot metal complexes
    • 批准号:
      12640535
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $2.3万
    • 财政年份:
      2000
    • 负责人:
      FUJII Yuki
    • 依托单位:
    海外基金