发光学报2013，Vol.34Issue(5)：579-584,6.DOI:10.3788/fgxb20133405.0579
2,7-二(3-(氰基)苯基)-9,9-二乙基芴的合成、晶体结构及光学性质
Synthesis, Crystal Structure and Spectroscopic Properties of 2,7-bis (3-cyanophenyl)-9,9-diethyl-fluorene
摘要
Abstract
A new fluorene derivative,2,7-bis (3-cyanophenyl)-9,9-diethyl-fluorene has been synthesized and characterized by elemental analysis,FT-IR spectra,1H NMR and X-ray single crystal diffraction.The compound crystallizes in orthorbombic,space group Pnma with a =1.380 0(3) nm,b =2.230 6(4) nm,c =0.726 33 (15) nm,V =2.235 8(8) nm3,Z=4,Dc=1.261 g/cm3,μ(MoKα) =0.073 mm-1,F(000) =896,S=1.013,the final R =0.046 9 and wR =0.104 2.The UV-Vis absorption and fluorescence spectra of the title compound were investigated.Under excitation of 330 nm at room temperature,the compound showed intense blue fluorescence with an emission peak of 408 nm.The fluorescence quantum yield of the title compound in CH2Cl2 solution is 0.64 and the Stokes shift between the UV-Vis absorption and fluorescence maxima is 56 nm for the film.This compound may be suitable as a promising candidate for blue-emitting material.关键词
芴/合成/晶体结构/光谱性质Key words
fluorene/ synthesis / crystal structure/ spectroscopic properties分类
化学化工引用本文复制引用
刘志鹏,李星,江晶,赵亚云,赵秀华,陈红兵..2,7-二(3-(氰基)苯基)-9,9-二乙基芴的合成、晶体结构及光学性质[J].发光学报,2013,34(5):579-584,6.基金项目
国家自然科学基金(20971075,21171102) （20971075,21171102）
浙江省自然科学基金(LY12B01005)资助项目 （LY12B01005）
