Tunneling rotation of the methyl radical in the CH$sub 3$COONa.3D$sub 2$O crystal

Journal Article · Thu Jan 01 04:00:00 EST 1976 · J. Am. Chem. Soc., v. 98, no. 1, pp. 293-294

OSTI ID:4031259

Kubota, S; Iwaizumi, M; Isobe, T

A single crystal of CH$sub 3$COONa.3D$sub 2$O was $gamma$ irradiated, and the ESR spectra of the methyl radical was studied from 77$sup 0$K to 4.2$sup 0$K. At 77$sup 0$K the radical is thought to be rotating freely about the threefold symmetry axis of the molecule; but as the temperature decreases, the rotational motion is expected to be strongly restricted. Six ESR spectra are presented which show additional splitting at lower temperatures. Analysis of the spectra confirm the expected quantum tunneling rotation of the radical in the crystal. (DDA)

• Research Organization: Tohoku, Univ., Sendai
• NSA Number: NSA-33-025468
• OSTI ID: 4031259
• Journal Information: J. Am. Chem. Soc., v. 98, no. 1, pp. 293-294, Journal Name: J. Am. Chem. Soc., v. 98, no. 1, pp. 293-294; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

*ACETATES-- RADIOLYSIS
*SODIUM COMPOUNDS-- RADIOLYSIS
400600* --Chemistry--Radiation Chemistry
ELECTRON SPIN RESONANCE
LOW TEMPERATURE
METHYL RADICALS
N40300* --Chemistry--Radiation Chemistry
QUANTUM MECHANICS
TEMPERATURE DEPENDENCE
VERY LOW TEMPERATURE
WAVE FUNCTIONS