| 三苯基Corrole及其铜配合物的π-π堆积效应研究 |
| Study on the π-π Stacking Effect of Tri-phenyl Corrole and Its Copper Complex |
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| 摘要: |
| 关键词: 卟啉 Corrole 铜配合物 π-π堆积效应 DFT |
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| Abstract: Aggregation behavior of 5,10,15-tris(pentafluorophenyl)corrole (F15TPC), 5,10,15,20-tetra(pentafluoroph-enyl)porphyrin (F20TPP), and their copper complexes in DCM solution were investigated by using UV-Vis spectro-scopic method. F20TPP and F20TPPCu exhibited strong π-π stacking interactions in DCM, and the intermolecular dimerization constants turned out to be 1.82 × 103 and 17.2 × 103 L·mol-1 respectively. However, extinction coefficients of F15TPC and F15TPCCu at soret band remained unchanged with increasing in their concentrations from 1.0 to 40.0 μmol·L-1, indicating they remained monomeric in DCM solution. Based on DFT calculation and the π-π stacking geometries observed in crystal structures of metal octaethylcorrole complexes, destroy of π-π interactions in F15TPC and F15TPCCu may be understood by the electrostatic potential surfaces (EPS) features of the molecules and steric repulsions caused by the introducing of three phenyl at the meso- positions of corrole macrocycle. |
| Keywords: porphyrin corrole copper complex π-π stacking DFT |
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| 刘海洋,郭平叶,徐志广,应晓,江焕峰,张启光.三苯基Corrole及其铜配合物的π-π堆积效应研究[J].无机化学学报,2007,23(3):504-508. |
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