Photophysical and electrochemical properties and temperature dependent geometrical isomerism in alkyl quinacridonediimines
作者:Iqbal Javed、Ayub Khurshid、Muhammad Nadeem Arshad、Yue Wang
DOI:10.1039/c3nj00477e
日期:——
NMR study of compounds 2, 7 and 10 (for instance), and single crystal X-ray analysis of 2, 3, 6, 7, 8 and 10 indicated that the anomalous behavior is due to the buckled, non-planar structure of the quinacridones. Moreover the molecules existed in two interconvertible geometric isomeric forms at different temperatures. Molecular orbital calculations were performed at B3LYP/6-31+G(d), B3PW91/6-31G(d) and