CRYSTAL-FIELD EFFECTS ON THE INFRARED-SPECTRA OF PHASE-I AND PHASE-II OF CRYSTALLINE CH4

被引：18

作者：

KHANNA, RK

NGOH, M

机构：

[1] Department of Chemistry and Biochemistry, University of Maryland, College Park

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1990年 / 46卷 / 07期

关键词：

D O I：

10.1016/0584-8539(90)80222-K

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The results of our investigations of the infrared spectra of crystalline films of 12CH4 and 13CH4 are presented. The observed fine structures of the ν3 and ν4 fundamentals in the i.r. spectra of phase II (below 20 K) are principally accounted for in terms of crystal field (site and factor group) splittings as are those of the overtones and combinations. The appearance of ν1 and ν2 in the i.r. spectra and the splittings of the degeneracies of ν3 and ν4 are suggestive of partial disorder (phase II) rather than free rotation of the molecular units in the James and Keenan model of crystalline CH4. © 1990.

引用

页码：1057 / 1063

页数：7

共 19 条

[1]

ANDERSON A, 1968, J CHEM PHYS, V43, P3468

[2]

[Anonymous], 1955, MOL VIBRATIONS

[3] INFRARED COMBINATION BANDS OF CH4 IN CRYSTAL FIELDS [J].