MILLIMETER-WAVE SPECTROSCOPY OF BIOMOLECULES - ALANINE

被引：166

作者：

GODFREY, PD ^{[1
]}

FIRTH, S ^{[1
]}

HATHERLEY, LD ^{[1
]}

BROWN, RD ^{[1
]}

PIERLOT, AP ^{[1
]}

机构：

[1] MONASH UNIV,CTR HIGH RESOLUT SPECT & OPTOELECTR TECHNOL,DEPT CHEM,CLAYTON,VIC 3168,AUSTRALIA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1993年 / 115卷 / 21期

关键词：

D O I：

10.1021/ja00074a039

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have observed the rotational spectrum of alanine using our Stark-modulated free-expansion jet spectrometer. Spectra arising from two different conformers have been identified and analyzed, yielding the following two sets of spectroscopic constants (MHz): (x) A = 5066.1332(91), B = 3100.9368(66), C = 2264.0428(92); (y) A = 4973.0600(64), B = 3228.3220(99), C = 2307.821(15). Dipole moment components have also been determined from the Stark effect. Species x has been identified with conformer I and y with conformer III (see Figure 2). These are the two conformers corresponding to those previously identified for glycine. We estimate their relative abundances in the expanding plume to be about 8:1 in favor of I.

引用

页码：9687 / 9691

页数：5

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