Liping Wang, Limin Wang, Jianyao Huang
Aug 1, 2015
Citations
0
Influential Citations
5
Citations
Journal
Chinese Journal of Chemistry
Abstract
Three novel dibenzo[a, d] cyclohepten-5-one derivatives containing hole-transporting groups were synthesized and characterized. These compounds exhibit good thermal stabilities. Single crystals of DBHO-TPA and DBHO-DPA were successfully grown from dichloromethane and their crystal structures were determined from X-ray diffraction data. Two molecules, DBHO-TPA and DBHO-DPA, have a nonplanar structure while seven-membered ring comprised in dibenzo[a, d] cyclohepten-5-one is not planar. Electrochemical properties of three compounds indicate that the different substituents on 3,7-positions of the dibenzo[a, d] cyclohepten-5-one derivatives have a small effect on the energy levels of the highest occupied molecular orbitals. The blue-green light-emitting diodes based on dibenzo[a, d] cyclohepten-5-one derivatives were fabricated.