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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >IR-LD spectroscopic characterization of L-Tryptophan containing dipeptides
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IR-LD spectroscopic characterization of L-Tryptophan containing dipeptides

机译:含L-色氨酸的二肽的IR-LD光谱表征

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IR-spectroscopic and stereo-structural analysis of aromatic L-Tryptophan containing dipeptides L-Tryptophan-L-Tryptophan (Trp-Trp), L-Tyrosine-L-Tryptophan (Tyr-Trp) and cyclo(Trp-Trp) have been carried out by means of solid-state linear-dichroic infrared (IR-LD) spectroscopy of oriented as suspension in nematic liquid crystal solids. The experimental data have been compared with analogous ones of the simple amino acids L-Tyrosnine (L-Tyr) and L-Tryptophan (L-Trp). In cyclo(Trp-Trp), the IR-spectral changes towards the IR-ones of acyclic Trp-Trp have been determined. A theoretical analysis of Tyr-Trp at Hartree-Fock level of theory and 6-31G** basis set is also applied. (c) 2005 Elsevier B.V. All rights reserved.
机译:进行了含芳香族L-色氨酸二肽L-色氨酸-L-色氨酸(Trp-Trp),L-酪氨酸-L-色氨酸(Tyr-Trp)和环(Trp-Trp)的红外光谱和立体结构分析通过固态线性二向色红外(IR-LD)光谱确定为向列液晶固体中的悬浮液。实验数据已与简单氨基酸L-酪氨酸(L-Tyr)和L-色氨酸(L-Trp)的相似氨基酸进行了比较。在环(Trp-Trp)中,已经确定了朝着无环Trp-Trp的IR-1的IR光谱变化。还应用了Hartree-Fock理论水平和6-31G **基集的Tyr-Trp理论分析。 (c)2005 Elsevier B.V.保留所有权利。

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