Influence of intermolecular hydrogen bonds on the luminescence properties of α-substituted cinnamonitriles

Mikhlina Y.A.; Bolotin B.M.; Uzhinov B.M.; Volchkov V.V.; KuzMina L.G.

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Influence of intermolecular hydrogen bonds on the luminescence properties of α-substituted cinnamonitriles

机译：分子间氢键对α-取代肉桂腈发光性能的影响

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In view of the dramatic difference in the spectral-luminescence properties of α-(p-chlorobenzoyl)-4-diethylaminocinnamonitrile and α-ethoxycarbonyl-4-diethylaminocinnamonitrile in solutions and in the crystalline state, X-ray diffraction analysis has been applied to study crystals of these compounds. The intermolecular C-H.N and C-H.O hydrogen bonds are found to contribute to the quinoidization of molecules, which leads to a bathochromic shift in the absorption and fluorescence spectra. A spectral-luminescence study of the aforementioned compounds has revealed that the solvent temperature and polarity affect the position of absorption and luminescence peaks: a decrease in these parameters causes a hypsochromic shift.

机译：鉴于溶液中和结晶状态下α-（对氯苯甲酰基）-4-二乙基氨基肉桂腈和α-乙氧基羰基-4-二乙基氨基肉桂腈的光谱发光性质存在巨大差异，X射线衍射分析已用于研究这些化合物的晶体。发现分子间的C-H.N和C-H.O氢键有助于分子的醌化，这导致吸收和荧光光谱中的红移。对上述化合物的光谱发光研究表明，溶剂的温度和极性会影响吸收峰和发光峰的位置：这些参数的降低会引起七色移。

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《Crystallography reports》 |2013年第2期|共7页
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Mikhlina Y.A.; Bolotin B.M.; Uzhinov B.M.; Volchkov V.V.; KuzMina L.G.;
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正文语种 eng
中图分类晶体学;
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1. Influence of intermolecular hydrogen bonds on the luminescence properties of α-substituted cinnamonitriles [J] . Mikhlina Y.A., Bolotin B.M., Uzhinov B.M., Crystallography reports . 2013,第2期

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Influence of intermolecular hydrogen bonds on the luminescence properties of α-substituted cinnamonitriles

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