A GAS-PHASE AND MATRIX-ISOLATION STUDY OF THE EQUILIBRIUM CH3ONO (CIS) REVERSIBLE-ARROW CH30NO (TRANS) BY FTIR SPECTROSCOPY

被引：61

作者：

BODENBINDER, M ^{[1
]}

ULIC, SE ^{[1
]}

WILLNER, H ^{[1
]}

机构：

[1] UNIV HANNOVER,INST ANORGAN CHEM,D-30167 HANNOVER,GERMANY

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1994年 / 98卷 / 26期

关键词：

D O I：

10.1021/j100077a004

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 gas-phase equilibrium of CH3ONO (cis) reversible arrow CH3ONO (trans) has been reinvestigated by FTIR spectroscopy in order to test the assumption that the equilibrium is not disturbed by the quenching process during formation of an Argon matrix. We are able to show that for this system this assumption is valid because the resulting thermodynamic parameters K-x(298) = 0.7 +/- 0.1, Delta H-R degrees = 3.5 +/- 0.2 kJ mol(-1), and Delta S-R degrees = 8.5 +/- 1 J mol(-1) K-1 for the matrix experiments are identical within experimental error limits to those obtained by other methods. In addition, for several infrared band pairs of both isomers, the relative extinction coefficients are determined.

引用

页码：6441 / 6444

页数：4

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