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5位芘取代的三芳基吡唑啉化合物的光物理行为
引用本文:张联齐,张宝文,曹怡. 5位芘取代的三芳基吡唑啉化合物的光物理行为[J]. 物理化学学报, 1999, 15(10): 911-917. DOI: 10.3866/PKU.WHXB19991010
作者姓名:张联齐  张宝文  曹怡
作者单位:Laboratory of Photochemistry,Institute of Photographic Chemistry,The Chinese Academy of Sciences,Beijing 100101,China
基金项目:国家自然科学基金!赞助项目 ( 59790 0 50 )
摘    要:合成了化合物 1 ,3 二苯基 5 ( 1 芘基 ) 2 吡唑啉 (DPPP) .由于 5位大取代基的存在 ,使整个分子不在同一平面 ,导致吡唑啉化合物光物理性质的改变 .DPPP光物理行为的研究表明 :即使在较低的浓度下 ( c=1 .0 8× 1 0 -5 mol·L-1) ,DPPP分子间也易生成电荷转移络合物 ;其荧光光谱表现出明显的溶剂极性效应、浓度效应和温度效应 ,不同的环境条件下可发射芘单体的荧光、分子内电荷转移络合物的荧光及分子间电荷转移络合物的荧光 .

关 键 词:芘基  吡唑啉  分子内电荷转移络合物  分子间电荷转移络合物  
收稿时间:1998-12-14
修稿时间:1999-04-02

A Study on Photophysical Behavior of 1,3-diphenyl-5-(2)-pyrenyl-2-pyrazoline
Zhang Lianqi,Zhang Baowen,Cao Yi. A Study on Photophysical Behavior of 1,3-diphenyl-5-(2)-pyrenyl-2-pyrazoline[J]. Acta Physico-Chimica Sinica, 1999, 15(10): 911-917. DOI: 10.3866/PKU.WHXB19991010
Authors:Zhang Lianqi  Zhang Baowen  Cao Yi
Affiliation:Laboratory of Photochemistry,Institute of Photographic Chemistry,The Chinese Academy of Sciences,Beijing 100101,China
Abstract:In this work, the compound 1,3-diphenyl-5-(1-pyrenyl)-2-pyrazoline (DPPP) has been synthesized. A bulky 5-aryl substituent in this compound makes the molecule non coplanar and having significant changes in photophysics. The investigation of its photophysical properties indicated that intermolecular charge transfer complex between DPPP molecule forms, easily even if the concentration is very low (1.08×10 -5 mol•L -1 ).Its fluorescence spectrum shows distinct solvent, concentration and temperature effects. Under different experimental conditions, the fluorescence may emit from pyrenyl monomer, intramolecular charge transfer complex (Intra-CT) and intermolecular charge transfer complex (Inter-CT).
Keywords:Pyrenyl   Pyrazoline   Intramolecular charge transfer complex   Intermolecular charge transfer complex
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