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。
Porphyrin dyad ZnTPP H 2( 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 H 2( 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
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1999年第1期89-94,共6页
Chinese Journal of Inorganic Chemistry
关键词
卟啉二元体系
能量传递
锌卟啉
配位二聚体
porphyrin dyad energy transfer fluorescence spectrum coordination dimer
