4,4′,6,6′-四苯基-2,2′-二亚噻喃的构型

On the Configuration of 4, 4’, 6,6’-Tetraphenyl-2, 2’-dithiopyrylene

本文标题化合物的溶液与晶体的可见-紫外吸收光谱,后者比前者有很大的红移,说明二亚噻喃的π电子体系之间有显著的分子间相互作用.在苯溶液中测得此合物的电偶极矩是1.90D,证明此化合物是顺式构型.

The title compound showed in its UV-VIS absorption spectra large red shifts of bands from solution to crystal indicating a pronounced intermolecular interaction between the dithiopyryleneπ-electron systems.Dipole moment measurement in benzene solution gave a dipole moment value of 1.90 D which offers a direct evidence for the cis-configuration of the molecule.