Spectroscopic detection of gas-phase HOSO2

被引：1

作者：

Nakajima, Masakazu ^{[1
]}

Endo, Yasuki ^{[2
]}

机构：

[1] Univ Tokyo, Dept Basic Sci, Meguro Ku, 3-8-1 Komaba, Tokyo 1538902, Japan

[2] Natl Yang Ming Chiao Tung Univ, Dept Appl Chem, 1001 Ta Hsueh Rd, Hsinchu 300098, Taiwan

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2021年 / 23卷 / 44期

关键词：

MICROWAVE-SPECTRUM; GROUND-STATE; ACID; MATRIX; SPECTROMETER; ALCOHOL; QUANTUM; SO2; OH;

D O I：

10.1039/d1cp04199a

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 HOSO2 radical was detected by microwave spectroscopy in a discharge plasma of a SO2/H2O gas mixture. The observed spectrum shows tunneling splittings due to the OH torsional motion. A least-squares analysis considering interactions between the two torsional sublevels of the ground vibronic state, 0(+) and 0(-), reproduces the observed transition frequencies with a standard deviation of ca. 3 kHz. The splitting between the two torsional sublevels is accurately determined to be 24.3 MHz for HOSO2 and 0.08 MHz for DOSO2. The potential barrier for the OH torsional motion is estimated to be 1150 cm(-1) from a one-dimensional hindered rotor model.

引用

页码：25063 / 25069

页数：7

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