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作 者:莫小曼 王海南 陈文 MO Xiao-man;WANG Hai-nan;CHEN Wen(Huanggang Normal University,Department of Chemistry and Chemical Engineering, Hubei,Huanggang,438000,China)
机构地区:[1]黄冈师范学院化学化工学院,湖北黄冈438000
出 处:《武汉轻工大学学报》2020年第5期33-40,共8页Journal of Wuhan Polytechnic University
基 金:国家自然科学基金课题(11374067,61378095).
摘 要:卟啉类化合物是一类具有大π-电子共轭体系的高效发光材料,由于性质独特,被广泛应用于光电、生物、医药、环境等领域,近年来发展很快。笔者设计合成了一类新型卟啉环联苯乙炔类液晶化合物,通过1H NMR,13C NMR,IR以及元素分析仪对其分子结构进行了鉴定和表征,利用紫外-可见光谱和荧光光谱对其光学性能进行了研究,利用循环伏安法对其轨道能级进行了测试与探讨,通过差热扫描量热法和偏光显微熔点仪对其热性能进行了表征。实验结果表明,所合成的目标化合物6a^6d均具有较高的荧光量子效率、较低的轨道能隙和宽温柱状液晶相态。Porphyrins are a kind of high efficiency luminescent materials with largeπ-electron conjugation ring system.Because of their unique properties,they have been widely used in the fields of photoelectricity,biology,medicine and environment and developed rapidly in recent years.In this paper,designed and synthesized a new type porphyrin ring liquid crystal compounds with diphenyl acetylene.And the molecular structures was identified and characterized by 1H NMR,13C NMR,IR and Elemental analyzer.Their optical properties were studied by UV-Vis spectra and Fluorescence spectra,their orbital energy levels were measured and discussed by the cyclic voltammetry,and their thermal properties were studied by differential thermal scanning calorimetry and the polarizing microscopic melting point apparatus.The experimental results show that the synthesized compounds 6a^6d have high fluorescence quantum efficiency,low orbital energy gap and wide temperature of columnar liquid crystal phase.
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