Microwave Spectrum and Barrier to Internal Rotation in Methylsilylacetylene

被引：38

作者：

Kirchhoff, William H. ^{[1
]}

Lide, David R., Jr. ^{[1
]}

机构：

[1] NBS, Natl Res Council, Washington, DC USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1965年 / 43卷 / 07期

关键词：

D O I：

10.1063/1.1697111

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：

The microwave spectrum of CH(3)CCSiH(3) shows a complex fine structure caused by internal rotation with a very low potential barrier. The major part of this structure can be explained on the basis of completely free internal rotation. However, small perturbations are found which suggest that the barrier may not be identically zero. Subject to reasonably firm assumptions, an upper limit of 3 cal/molecule can be placed on the barrier height. The theory for treating this type of spectrum is developed, and some implications of the results are discussed.

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页码：2203 / 2212

页数：10

相关论文

共 18 条

[1] MICROWAVE DETERMINATION OF THE STRUCTURE OF TRIFLUOROBUTYNE [J].

BAK, B ;

CHRISTENSEN, D ;

HANSENNYGAARD, L ;

TANNENBAUM, E .

JOURNAL OF CHEMICAL PHYSICS, 1957, 26 (02) :241-243

[2] EXPERIMENTAL EVIDENCE OF RESTRICTED ROTATION IN CH3-C=C-CF3 [J].

BAK, B ;

HANSEN, L ;

RASTRUPANDERSEN, J .

JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (09) :1612-1613

[3] INFRA-RED SPECTRUM OF DIMETHYLACETYLENE + TORSIONAL BARRIER [J].

BUNKER, PR ;

LONGUETHIGGINS, HC .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1964, 280 (1380) :340-+

[4] MICROWAVE SPECTRUM AND BARRIER TO INTERNAL ROTATION OF METHYL STANNANE [J].

CAHILL, P ;

BUTCHER, S .

JOURNAL OF CHEMICAL PHYSICS, 1961, 35 (06) :2255-&

[5] HINDERED ROTATION IN MOLECULES WITH RELATIVELY HIGH POTENTIAL BARRIERS [J].

HECHT, KT ;

DENNISON, DM .

JOURNAL OF CHEMICAL PHYSICS, 1957, 26 (01) :31-47

[6] INTERACTIONS BETWEEN ORDINARY VIBRATIONS AND HINDERED INTERNAL ROTATION .1. ROTATIONAL ENERGIES [J].

KIRTMAN, B .

JOURNAL OF CHEMICAL PHYSICS, 1962, 37 (11) :2516-&

[7]

KIRTMAN B, 1963, OH STAT S MOL STRUCT

[8]

Kistiakowsky G. B, 1940, J CHEM PHYS, V8, P618

[9] THEORY OF THE INTERACTION OF HINDERED INTERNAL ROTATION WITH OVER-ALL ROTATIONS .1. SYMMETRIC ROTORS - METHYL SILANE [J].

KIVELSON, D .

JOURNAL OF CHEMICAL PHYSICS, 1954, 22 (10) :1733-1739

[10] Hindered rotation in methyl alcohol [J].

Koehler, JS ;

Dennison, DM .

PHYSICAL REVIEW, 1940, 57 (11) :1006-1021