一种电荷转移型咔唑苯腙衍生物的合成及其发光行为  

Synthesis and Luminescence Behavior of a Novel Charge Transfer Compound Containing Carbazole Phenylhydrazone

作　　者：李俊芬[1] 李晋增[1] 张彩红[1] 韩玉英[1] 秦曦[1] 董川[2] 

机构地区：[1]山西大学化学化工学院,太原030006 [2]山西大学环境科学与工程研究中心,太原030006

出　　处：《应用化学》2013年第10期1139-1143,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(21105060;20575037);山西省自然科技基金(2010011013-1;2012011007-2)资助项目

摘　　要：合成了具有强电子给体和拉电子能力基团的新化合物:9-乙基-3-咔唑亚甲基-(2,4-二硝基)苯腙,研究了其光谱性质和光物理行为。结果表明,化合物在溶液中,随着溶剂极性的增大,发生了分子内电子转移,激发态和基态的偶极矩差值(μE-μG)为4.530 D,并在强极性溶剂中出现了有趣的双荧光发射。随着其浓度增大,会形成二聚或多聚体,荧光发射发生红移。A novel compound, containing a strong electron donor and a strong electron acceptor, 3-（ （2-（2,4- dinitrophenyl） hydrazono）methyl）-9-ethyl-9H-carbazole, was synthesized. Its spectral property and photo- physical behavior were studied. Intermolecular charge transfer occurred from N-ethylcarbazole to NO2- with the increase of the solvent polarity. Double fluorescence emission was observed in strong polarity solvent. Change of dipole moment between the ground state and the excitation state was 4. 53 D. Dimmer or polymer was formed at high concentration and the emission wavelength was red shifted.

关 键 词：咔唑腙类化合物 分子内电荷转移 溶剂极性 

分 类 号：O656[理学—分析化学]