in polar benzonitrile. In addition, the excitation transfer from the singlet BDP to ADP is also envisioned due to good spectral overlap of the BDP emission and ADP absorption spectra. Femtosecond laser flash photolysis studies provided concrete evidence for the occurrence of energy transfer from 1BDP* to ADP (in benzonitrile and toluene) and electron transfer from BDP to 1ADP* (in benzonitrile, but
由已知的光敏剂BF 2螯合的二
吡咯甲烷(
BDP)组成的分子二联体和三联体,与其结构类似物和近红外发射敏化剂BF 2共价连接新合成了螯合的四芳基氮杂二
吡咯甲烷(
ADP),并通过飞秒和纳秒激光闪光光解法研究了光诱导的能量和电子转移。通过光谱,电
化学和计算方法已经确定了新合成化合物的结构完整性。DFT计算显示了三重结构的分子夹型结构,其中
BDP和
ADP实体之间的间隔约为14Å,荧光团之间的二面角约为70°。差分脉冲伏安法研究已经揭示了氧化还原状态,从而可以估计电荷分离状态的能量。这样的计算揭示了电荷从单重激发
BDP(1
BDP *)到
ADP(
BDP 。+ -
ADP .-)在非极性
甲苯和极性
苄腈中在能量上有利。另外,由于
BDP发射光谱和
ADP吸收光谱的良好光谱重叠,还可以设想从单重态
BDP到
ADP的激发转移。飞秒激光闪光光解研究为发生从1
BDP *到
ADP的能量转移(在
苄腈和
甲苯中)和从
BDP到1