ESR STUDY OF STEREOSPECIFIC PROTON TRANSFER IN IRRADIATED CRYSTALS OF L-ALANINE

被引：54

作者：

MIYAGAWA, I

TAMURA, N

COOK, JW

机构：

[1] Department of Physics, University of Alabama, University, AL

[2] Takasaki Research Establishment, Japan Atomic Energy Research Institute, Takasaki, Gunma-ken

[3] Department of Physics, Clemson University, Clemson

来源：

JOURNAL OF CHEMICAL PHYSICS | 1969年 / 51卷 / 08期

关键词：

D O I：

10.1063/1.1672542

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Crystals of L-alanine irradiated at 80°K were studied with ESR technique. It was found that the proton transfer, which had originally been proposed by Sinclair and Hanna, was stereospecific: The produced species was found to be organic equations and no evidence for its chemically equivalent species organic equations was detected. This stereospecific proton transfer was interpreted on the basis of a quantum-tunneling model, which was found to account for the observed result satisfactorily. A new sample cavity was developed. This cavity has a device which enables one to orient an irradiated crystal to any desired direction, even at 80°K.

引用

页码：3520 / &

共 26 条

[1]

BRICKMANN J, 1968, J CHEM PHYS, V50, P1608

[2] EFFECT OF NUCLEAR SPIN STATISTICS ON ESR ANDOR SPECTRA OF METHYL GROUP HYPERFINE STRUCTURE [J].