高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (8): 1103.

• 研究论文 • 上一篇    下一篇

中位-四(4-N-甲氧羰甲基吡啶)卟啉镍配合物的表面增强拉曼光谱研究

何季平1, 周翔2, 吴萱阶2, 陈彰评2   

  1. 1. 武汉工业大学材料研究与测试中心, 武汉 430070;
    2. 武汉大学化学系
  • 收稿日期:1992-07-01 修回日期:1993-02-10 出版日期:1993-08-24 发布日期:1993-08-24
  • 通讯作者: 何季平
  • 作者简介:第一作者:女, 54岁, 高级工程师.
  • 基金资助:

    国家自然科学基金

Studies on the Surface-Enhanced Raman Spectra of meso-Tetrakis (4-N-methoxycarbonyl methyl pyridyl)porphyrin and Its Nickel Complexes

HE Ji-Ping1, ZHOU Xiang2, WU Xuan-Jie2, CHEN Zhang-Ping2   

  1. 1. Center of Research and Analysis of Materials, Wuhan University of Technology, Wuhan, 430070;
    2. Department of Chemistry, Wuhan University, Wuhan
  • Received:1992-07-01 Revised:1993-02-10 Online:1993-08-24 Published:1993-08-24

摘要: 研究了季铵盐型的中位-四(4-N-甲氧羰甲基吡啶)。卟啉(H2TrNEAMSPyP(4))及其镍配合物(NiTrNEAMSPyP(4))的共振拉曼光谱和表面增强拉曼光谱,对其拉曼特征频率作了经验归属,并研究了溶液酸度对拉曼光谱的影响.实验结果表明,该配合物随着溶液酸度的变化,具有不同的存在形式,且彼此保持一定的平衡关系。

关键词: 中位-四(4-N-甲氧羰甲基吡啶)卟啉镍配合物, 表面增强拉曼光谱, 共振拉曼光谱

Abstract: The surface-enhanced Raman spectra (SERS) and resonance Raman spectra (RRS) of Ni( Ⅱ)TrNEAMsPyP(4) were measured and compared with the Raman spectra of Ni( Ⅱ )TMPyP (4).Band assignments are made by analogy to those for Ni( Ⅱ )TMPyP.pH-dependent spectra of Ni( Ⅱ )TrNEAMsPyP(4) and H2TrNEAMsPyP(4)+ are presented.It has been found that the neutral aqueous solution of Ni complexes contains 4-coordinate Ni( Ⅱ )TrNEAMsPyP(4) and 6-coordinate Ni( Ⅱ )TrNEAMsPyP(4)(H2O)2. In acid solution, we assign the structure as the diaquo complexes or cat ionic complexes Ni( Ⅱ )TrNEAMsPyP(4)+ and show the transition from diaquo to hydroxy monomer/μ-Odimer complexes in the slightly alkaline solution.At pH 14.0 a second equilibrium process was observed, leading to dihydroxy complex.

Key words: Meso-tetrakis(4-N-methoxycarbonyl methyl pyridyDporphyrin nickel complex, Surface-enhanced Raman spectra, Resonance Raman spectra

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