Kuball HG, Hofer T
Fachbereich Chemie, Universitat Kaiserslautern, Kaiserslautern, Germany.
Chirality. 2000 May;12(4):278-86. doi: 10.1002/(SICI)1520-636X(2000)12:4<278::AID-CHIR14>3.0.CO;2-O.
The results of the "Chirality measurement" circular dichroism along different viewing directions within molecules and phases-the anisotropy of circular dichroism can give suitable information in order to check helicity rules or to analyze the suprastructural chirality of films of organic materials, respectively. These results of the ACD spectroscopy (the CD of anisotropic phases and oriented molecules) show that in an oriented state different information about "chirality" will be gained from different viewing directions. ACD measurements of alpha,beta-unsaturated ketosteroids, TADDOLes and binaphthol derivatives were analyzed. The chiral induction of cholesteric phases, the helical twisting power, is introduced as another chirality measurement which may possibly be a new relative method for the determination of the absolute configuration. Copyright 2000 Wiley-Liss, Inc.
“手性测量”的结果——沿分子和相内不同观察方向的圆二色性，即圆二色性的各向异性，能够分别提供合适的信息，以检验螺旋规则或分析有机材料薄膜的超结构手性。这些各向异性圆二色光谱（各向异性相和取向分子的圆二色性）的结果表明，在取向状态下，从不同观察方向将获得有关“手性”的不同信息。分析了α，β - 不饱和甾酮、TADDOL和联萘酚衍生物的各向异性圆二色性测量。胆甾相的手性诱导，即螺旋扭曲力，作为另一种手性测量方法被引入，它可能是一种确定绝对构型的新的相对方法。版权所有2000威利 - 利斯公司。
