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手性同生的光化机制。第 2 部分。

A photochemical mechanism for homochirogenesis. Part 2.

机构信息

Department of Chemistry, University of Tennessee, Knoxville, Tennessee, USA.

出版信息

Chirality. 2013 Jan;25(1):16-21. doi: 10.1002/chir.22105. Epub 2012 Sep 11.

Abstract

A theoretical investigation of the photochemistry of racemic compounds with circularly polarized light was undertaken. The exact solutions of the differential equations by numerical integration to the approximate solutions used in an earlier article were compared. The exact solutions showed that sequential reactions yield enhanced optical activities in the products. For irreversible reactions, all enantiomeric excesses are lost if the reactions are carried to completion, but appreciable resolution occurs in many cases for partial conversion. For reversible reactions, significant enantiomeric excesses are found at the photostationary state.

摘要

本文对旋光性化合物的光化学反应进行了理论研究。通过数值积分得到了微分方程的精确解,并与早期文章中使用的近似解进行了比较。精确解表明,连续反应会在产物中产生增强的旋光活性。对于不可逆反应,如果反应进行到完全,所有对映体过量都会丧失,但在许多情况下,部分转化会产生可观的分辨率。对于可逆反应,在光稳定态下会发现显著的对映体过量。

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