Vibrational properties of liquid crystal molecules from AB initio computer simulation

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/27693

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题名:	Vibrational properties of liquid crystal molecules from AB initio computer simulation
作者:	Clark, S. J.;Adam, C. J.;Hsueh, H. C.;Pu, F.;Crain, J.
贡献者:	淡江大學物理學系
日期:	1997-01-01
上传时间:	2009-12-31 10:37:51 (UTC+8)
出版者:	Philadelphia, PA: Taylor & Francis
摘要:	We determine the molecular vibrational frequencies and displacement patterns for the 4–4′ pentyl-cyanobiphenyl (5CB) molecule by first principles density functional theory. All dynamic properties of the isolated molecule are obtained directly by diagonalisation of the dynamical matrix, the elements of which are determined from Hetlmann-Feynman Forces. Periodic boundary conditions are used which allow for the expansion of the molecular electronic wavefunction in terms of a delocalised plane wave basis set. These calculations are in excellent agreement with the results of vibrational spectroscopy and they provide a reliable means of predictive modelling of molecular properties and can be applied to as yet unsynthesised molecules.
關聯:	Molecular Crystals and Liquid Crystals 302, pp.433-438
DOI:	10.1080/10587259708041859
显示于类别:	[物理學系暨研究所] 期刊論文

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