新型 5-(3-芳基-1H-吡唑-5-基)-2-(3-正丁基-1-氯咪唑并[1,5-a]吡啶-7-基)-1,3,4-恶二唑的合成、表征及光学性质。
The synthesis, characterization and optical properties of novel 5-(3-aryl-1H-pyrazol-5-yl)-2-(3-butyl-1-chloroimidazo[1,5-a]pyridin-7-yl)-1,3,4-oxadiazole.
机构信息
School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, PR China; School of Chemical Engineering, Taishan Medical University, Taian, Shandong 271016, PR China.
School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, PR China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2014 Apr 5;123:336-41. doi: 10.1016/j.saa.2013.12.016. Epub 2013 Dec 28.
A series of novel 5-(3-aryl-1H-pyrazol-5-yl)-2-(3-butyl-1-chloroimidazo[1,5-a]- pyridin-7-yl)-1,3,4-oxadiazole derivatives has been synthesized from 3-butyl-1-chloroimidazo[1,5-a]pyridine-7-carboxylic acid and ethyl 3-aryl-1H-pyrazole-5-carboxylate. The compounds were characterized using IR, (1)H NMR, HRMS and UV-vis absorption. The fluorescence spectral characteristics of the compounds in dichloromethane were investigated. The results showed that absorption λmax and emission λmax was less correlated with substituent groups on N-1 position of pyrazole moiety and para position of benzene moiety. The calculated molecular orbital correlates well with their absorption.
已经从 3-丁基-1-氯咪唑并[1,5-a]吡啶-7-羧酸和乙酯 3-芳基-1H-吡唑-5-羧酸合成了一系列新型的 5-(3-芳基-1H-吡唑-5-基)-2-(3-丁基-1-氯咪唑并[1,5-a]吡啶-7-基)-1,3,4-恶二唑衍生物。这些化合物通过红外光谱（IR）、（1）H NMR、高分辨质谱（HRMS）和紫外可见吸收光谱（UV-vis absorption）进行了表征。研究了化合物在二氯甲烷中的荧光光谱特征。结果表明，吸收 λmax 和发射 λmax 与吡唑部分的 N-1 位和苯部分的对位上取代基基团的相关性较小。计算的分子轨道与它们的吸收很好地相关。
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