| 锌卟啉轴向配合物的光谱特性及配位二聚体分子内的能量传递 |
| SPECTRA CHARACTERISTIC OF AXIAL ADDUCT OF ZINC PORPHYRIN WITH H2(m-py)TPP AND ENERGY TRANSFER IN COORDINATION DIMER |
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| 摘要: 通过轴向配位作用构造了ZnTPP-H2(m-py)TPP卟啉二元体系，研究了配位二聚体的可见吸收光谱和荧光发射光谱特性，考察了二聚体分子内的能量传递过程，观察到能量从激发态ZnTPP*流向H2(m-py)TPP。作为对比，研究了ZnTPP-py体系的可见吸收光谱和荧光发射光谱。轴向配位的吡啶引起了ZnTPP荧光光谱明显红移，没有分子内的能量转移过程发生。用吸收光谱和荧光光谱方法计算了加合反应的平衡常数，得到了基本一致的结果。 |
| 关键词: 卟啉二元体系 能量传递 荧光光谱 配位二聚 |
| 基金项目: |
| Abstract: Porphyrin dyad ZnTPP-H2(m-py)TPP was constituted through coordination reaction. Visible absorption and fluorescence spectra of coordination dimer were studied. The energy transfer in coordination dimer was proved by fluorescence spectra, which shown that ZnTPP unit transfers excitation energy to the H2(m-py)TPP. As comparison, visible absorption and fluorescence spectra of ZnTPP-py were studied. The fluorescence spectra of ZnTPP undergoes a red shift by pyridine ligation. There is no energy transfer in ZnTPP-py. The equilibrium contansts of coordination reaction were calculated using absorption and fluorescence spectra separately which is consistent. |
| Keywords: porphyrin dyad energy transfer fluorescence spectrum coordination dimer |
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| 徐昕,邹建忠,叶蕾,丁晓峰,潘毅.锌卟啉轴向配合物的光谱特性及配位二聚体分子内的能量传递[J].无机化学学报,1999,15(1):89-94. |
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