Conformational distortion of α-phenylethyl amine in cryogenic matrices - a matrix isolation VCD study.

Conformational distortion of α-phenylethyl amine in cryogenic matrices - a matrix isolation VCD study.
复制标题

低温基质中 α-苯乙胺的构象畸变 - 基质分离 VCD 研究

DOI:
10.1039/c6cp01946c
复制
发表时间:
2016
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
通讯作者:
C. Merten
C. Merten
中科院分区:
--
文献类型:
--
作者:
C. H. Pollok;C. Merten

文献摘要

参考文献

被引文献

相似文献

在低温基质中分离出手性胺 α-苯乙胺 (PEA),并使用振动圆二色性 (VCD) 和红外光谱进行研究。 PEA 的势能面 (PES) 具有通过相对较低构象过渡态连接的五种不同构象异构体。基于红外光谱,可以证实在 20 K 的沉积温度下所有构象能垒都被通过,并且在氩和氮基质中仅填充了 PEA 的全局最小构象。然而,计算和实验 VCD 光谱的差异表明,苯环和胺取向的扰动导致了与最小结构的偏差。研究发现扰动的程度还取决于主体气体的选择,这表明环境对 PEA 构象畸变的微妙影响。
The chiral amine α-phenylethyl amine (PEA) was isolated in cryogenic matrices and investigated using vibrational circular dichroism (VCD) and infrared spectroscopy. The potential energy surface (PES) of PEA features five different conformers connected by relatively low conformational transition states. Based on the IR spectra, it could be confirmed that all conformational energy barriers are passed at a deposition temperature of 20 K, and that only the global minimum conformation of PEA is populated in both argon and nitrogen matrices. However, differences in the calculated and experimental VCD spectra indicate deviations from the minimum structure by perturbation of the phenyl ring as well as of the amine orientation. The degree of the perturbation is found to also depend on the choice of the host gas, which shows the subtle influence of the environment on the conformational distortion of PEA.
α-甲基苄胺衍生物的 VCD 研究:检测未改变的手性基序。
DOI: --
发表时间: 2010
期刊: Chirality
影响因子: 2
作者:
Christian Merten;M. Amkreutz;A. Hartwig
通讯作者: A. Hartwig
DOI: 10.1038/ncomms2756
发表时间: 2013
影响因子: 16.6
作者:
通讯作者: --
DOI: --
发表时间: 2005
期刊:
影响因子: --
作者:
I. Reva;Alcides Simão;R. Fausto
通讯作者: R. Fausto
1,2-二氟乙烷在固体氩中的构象异构化:笼式改进的反应势垒
DOI: --
发表时间: 1996
期刊:
影响因子: --
作者:
Alexander V. Benderskii and;C. Wight
通讯作者: C. Wight
基质隔离的 1,3-丁二醇的构象冷却动力学。
DOI: --
发表时间: 2009
影响因子: 2.9
作者:
Mário T. S. Rosado;A. J. L. Jesus;I. Reva;R. Fausto;J. S. Redinha
通讯作者: J. S. Redinha