(R)-1,3丁二醇的手性不对称性:微分键极化率的研究  

The chiral asymmetry of R-(-)1,3-butanediol as revealed by its Raman differential bond polarizabilities

作　　者：沈红霞[1] 吴国祯[2] 王培杰[3] 

机构地区：[1]嘉兴学院生物与化学工程学院,嘉兴314001 [2]低维量子物理国家重点实验室,清华大学物理系,北京100084 [3]北京市纳米光电子学重点实验室,首都师范大学物理系,北京100048

出　　处：《物理学报》2013年第15期141-146,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:21153001)资助的课题~~

摘　　要：本文从(R)-(-)-1,3-丁二醇((R)-(-)-1,3-Butanediol)的拉曼峰强和拉曼旋光峰强,求得其键极化率和微分键极化率,得出在拉曼过程中,电荷主要沿H16(或H15)O6C3C2C1O5所形成的(六边)环向外围的OH键和CH键流动.而此环内外化学键的微分键极化率的符号正好相反,此意味着这个分子具有相当好的手性不对称性质.The Raman optical activity （ROA） of （R）-（-）-1,3-butanediol was described through the analysis of bond polarizability and differential bond polarizability, which were elucidated by Raman and ROA spectral intensities, respectively. Analysis shows that during the Raman process, the charge flows from the （six） rings formed by H16 （or H15） O6C3C2C1O5 to the peripheral OH and CH bonds. The analysis also shows that the signs of differential bond polarizabilities associated with the rings inside and outside are opposite. This means that the chiral asymmetry of this molecule is fairly distinct.

关 键 词：旋光拉曼 键极化率 微分键极化率 1 3-丁二醇 

分 类 号：O561[理学—原子与分子物理]