IR MATRIX-ISOLATION STUDIES OF THE CONFORMATIONS OF 1,3-DICHLORO-2,2-DIMETHYLPROPANE AND 2-(CHLOROMETHYL)-2-METHYL-1,3-DICHLORO-PROPANE

被引：12

作者：

BRAATHEN, GO

GATIAL, A

KLAEBOE, P

NIELSEN, CJ

机构：

[1] Department of Chemistry, University of Oslo

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1990年 / 218卷

关键词：

D O I：

10.1016/0022-2860(90)80245-F

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 IR spectra of the title compounds matrix isolated in argon and nitrogen at 14 K, were recorded with the hot nozzle method at temperatures of 300, 450, 700 and 900 K. In 1,3-Dichloro-2,2-dimethylpropane a third conformer (AA) with C2v symmetry was detected in addition to those with C2 (GG) and C1 (AG) symmetries observed previously. The enthalpy differences were measured as ΔHo(AG-GG) equal to 4.0 and ΔHo(AA-GG) equal to 7.5 kJ mol-1. In 2-(Chloromethyl)-2-methyl-1,3-dichloropropane the spectra revealed the three conformers with symmetries CS, C1 and C3 determined earlier, and the enthalpy differences were measured to be ΔHo(C1-CS)=1.7 and ΔHo(C3-CS)=3.9 kJ mol-1. © 1990.

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页码：67 / 72

页数：6

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