Synthesis, crystal structure, tunable photophysics of aza-boron-diquinomethene complexes bearing N-aryl substituents
A series of new aza-boron-diquinomethene complexes (1a-1f) bearing different N-aryl substituents (Ar =N-carbazolyl (1a), N-benzoimidazolyl (1b), N-naphthalen-2-yl-phenylamino (1c), N-dibenzocarbazolyl (1d), N-phenothiazinyl (1e), 3,6-di-tert-butyl-N-carbazolyl (1f)) were synthesized and characterized.The influence of the aryl group on the photophysics of these complexes is systematically investigated by spectroscopic methods and simulated by density functional theory (DFT) calculations.All these robust thermal complexes exhibit strong 1π-π*/ intra-molecular charge transfer (1ICT) absorptions in the region of 400-550 nm, and tunable intense luminescence from blue to red with emission quantum yields ranging from 0.12 to 0.78.The crystal structure of complex 1a with carbazolyl components was determinedThe robust thermal stability, tunable photophysics, relatively high photoluminescence quantum yields and unique mechanochromic luminescence switch properties make complexes 1a-1f promising organic light-emitting materials.
Boron-fluorine complexes Crystal structure Photophysical properties Tunable emission
Xiaolin Zhu Rui Liu Hongjun Zhu
Department of Applied Chemistry, College of Sciences, Nanjing Tech University, Nanjing 211816, P.R.China
国际会议
昆明
英文
280-294
2014-05-01（万方平台首次上网日期，不代表论文的发表时间）