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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Theoretical investigation on the non-linear optical properties, vibrational spectroscopy and frontier molecular orbital of (E)-2-cyano-3-(3-hydroxyphenyl)acrylamide molecule
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Theoretical investigation on the non-linear optical properties, vibrational spectroscopy and frontier molecular orbital of (E)-2-cyano-3-(3-hydroxyphenyl)acrylamide molecule

机译:(E)-2-氰基-3-(3-羟苯基)丙烯酰胺分子的非线性光学性质,振动光谱和前沿分子轨道的理论研究

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The vibrational frequencies of (E)-2-cyano-3-(3-hydroxyphenyl)acrylamide (HB-CA) in the ground state have been calculated using density functional method (B3LYP) with B3LYP/6-311++G(d,p) basis set. The analysis of natural bond orbital was also performed. The IR spectra were obtained and interpreted by means of potential energies distributions (PEDs) using MOLVIB program. In addition, the results show that there exists C-H center dot center dot center dot O hydrogen bond in the title compound, which is confirmed by the natural bond orbital analysis. The predicted NLO properties show that the title compound is a good candidate as nonlinear optical material. The analysis of frontier molecular orbitals shows that HB-CA has high excitation energies, good stability and high chemical hardness. The analysis of MEP map shows the negative and the positive potential sites. (C) 2014 Elsevier B.V. All rights reserved.
机译:使用密度泛函方法(B3LYP)和B3LYP / 6-311 ++ G(d)计算了基态(E)-2-氰基-3-(3-羟基苯基)丙烯酰胺(HB-CA)的振动频率,p)基础集。还进行了自然键轨道的分析。使用MOLVIB程序,通过势能分布(PED)获得并解释了红外光谱。此外,结果表明标题化合物中存在C-H中心点中心点中心点O氢键,这通过自然键轨道分析证实。预测的NLO性质表明,该标题化合物是非线性光学材料的理想选择。前沿分子轨道分析表明,HB-CA具有较高的激发能,良好的稳定性和较高的化学硬度。 MEP图的分析显示了负和正电位位点。 (C)2014 Elsevier B.V.保留所有权利。

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