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合成了系列不同长度以柔性侧链相连的ｐ/ｐ型双－锌卟啉配合物,用１Ｈ ＮＭＲ和ＵＶ－Ｖｉｓ研究了不同温度下该系列配合物与刚性双齿配体ＤＡＢＣＯ(１,４－二氮杂双环)的轴向配位反应,考察了侧链长度对双－锌卟啉与配体的分子识别能力影响．结果表明,主体分子双－锌卟啉可以对客体分子ＢＡＢＣＯ进行分子识别,合适长度的柔韧烷氧链可以调节主体分子的构象,使ＤＡＢＣＯ嵌入双卟啉两个卟啉环间空位中,形成锌卟啉－ＤＡＢＣＯ－锌卟啉三元夹心式配合物构象．探讨了配位反应中立体构象的变化过程,并测定了热力学参数．
A series of p / p-type bis-zinc porphyrin complexes with different length and side chains were synthesized. Their structures were characterized by 1H NMR and UV-Vis. The results show that this series of complexes with the rigid bidentate ligand DABCO - diazabicyclo), the influence of side chain length on the molecular recognition ability of bis-zinc porphyrin and ligand was investigated. The results showed that the host molecule bis-zinc porphyrin could recognize the guest molecule BABCO. The suitable length of flexible alkoxide chain could regulate the conformation of the host molecule. DABCO was inserted into the space between two porphyrin rings of bis-porphyrin to form zinc Porphyrin-DABCO-Zinc Porphyrin Ternary Sandwich Complex Conformation. The process of the conformational change in coordination reaction was discussed, and the thermodynamic parameters were also determined.