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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Conformational analysis of alkylamino chains using isolated C-D stretching vibrations
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Conformational analysis of alkylamino chains using isolated C-D stretching vibrations

机译:使用孤立的C-D拉伸振动对烷基氨基链进行构象分析

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摘要

The conformation of alkylamino chains has been analyzed by using isolated C-D stretching vibrations. The compounds studied are N-methylpiperidine-2,6-d_2, N-ethylpiperidine-1'-d_1, N-propylpiperidine-1'-d_1, N-butylpiperidine-1'-d_1, N,N-dimethylpentylamine-1-d_1, N,N',5,5-tetramethylhexahydropyrimidine-2-d_1, N,N-dimethylbutylamine-2-d_1, N,N-dimethylpentylamine-2-d_1 and N,N-dimethylhexylamine-2-d_1. The observed C-D stretching wavenumbers for different conformations at different positions of the alkylamino chain have been correlated linearly to the C-D bond lengths calculated by ab initio molecular orbital methods. The C-D stretching wavenumbers depend significantly on the conformation in the close vicinity of the C-D bond. Isolated C-D stretching vibrational spectroscopy has great potential for being used in conformational analysis of alkylamino chains in functional and biological substances.
机译:烷基氨基链的构象已通过使用孤立的C-D拉伸振动进行了分析。研究的化合物为N-甲基哌啶-2,6-d_2,N-乙基哌啶-1'-d_1,N-丙基哌啶-1'-d_1,N-丁基哌啶-1'-d_1,N,N-二甲基戊胺-1-d_1 ,N,N′,5,5-四甲基六氢嘧啶-2-d_1,N,N-二甲基丁胺-2-d_1,N,N-二甲基戊胺-2-d_1和N,N-二甲基己胺-2-d_1。在烷基氨基链的不同位置观察到的不同构象的C-D拉伸波数已与从头算分子轨道方法计算出的C-D键长线性相关。 C-D拉伸波数显着取决于C-D键附近的构象。隔离的C-D拉伸振动光谱法在功能性和生物性物质中烷基氨基链的构象分析中具有很大的潜力。

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