中子粉末衍射方法在全氢氨基酸分子研究中的应用  

Neutron Powder Diffraction Study on Fully Hydrogenated Amino Acid Molecules

作　　者：焦学胜[1] 孙凯[1] 韩文泽[1] 刘蕴韬[1] 陈东风[1] 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《原子能科学技术》2010年第B09期40-42,共3页Atomic Energy Science and Technology

基　　金：国家重点基础研究发展计划资助项目(2010CB833101);核能开发资助项目(HK.WL1001)

摘　　要：研究氨基酸分子结构的传统方法为X射线衍射和氘化后中子衍射。本文应用X射线衍射、中子粉末衍射和拉曼散射研究丙氨酸和亮氨酸分子的结构。结合红外光谱技术,比较全氢、部分氘化和完全氘化的丙氨酸分子结构,发现这两种方法在氨基酸分子结构研究中的不足。同时,应用中子粉末衍射方法对亮氨酸分子进行直接测量,结果表明:中子粉末衍射方法可给出亮氨酸分子的精细结构。The traditional methods for studing amino acid molecular structure are X-ray diffraction and neutron diffraction after deuteration. In this paper, X-ray diffraction, neutron powder diffraction and Raman scattering were used to study the molecular structure of alanine and leucine. Combination of infrared spectroscopy, compared with fully hydrogenated, partial deuterated and fully deuterated alanine molecules, it is shown that the traditional methods are not enough in the study of molecular structure. Meanwhile, the neutron powder diffraction method was used to measure the leucine molecule directly. It shows that neutron powder diffraction method can give the fine structure of leucine molecule.

关 键 词：氘化 中子衍射 丙氨酸 亮氨酸 

分 类 号：O434.13[机械工程—光学工程]