UV irradiation and infrared observation of sulfur dioxide clusters and solids at cryogenic temperature

被引：3

作者：

Ito, Fumiyuki ^{[1
]}

Koga, Ryoichi ^{[2
]}

Negishi, Shohei ^{[2
]}

Hirahara, Yasuhiro ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Onogawa 16-1, Tsukuba, Ibaraki 3058569, Japan

[2] Nagoya Univ, Dept Earth & Planetary Sci, Nagoya, Aichi 4648601, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2023年 / 829卷

基金：

日本学术振兴会;

关键词：

UV irradiation; Sulfur dioxide; Io; Intersystem crossing; Minima-hopping algrism; SO2; IDENTIFICATION; PHOTOLYSIS; GASES; PHOTODISSOCIATION; CHEMISTRY; DISCOVERY; SPECTRUM; MONOXIDE; STATE;

D O I：

10.1016/j.cplett.2023.140742

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：

Clusters in the Ar matrix and solids of sulfur dioxide (SO2) produced at cryogenic temperature have been subject to UV irradiation, followed by spectroscopic observation in the mid-infrared region. We found that UV irradiation in the B-band (266-300 nm) of SO2 resulted in annealing and production of sulfur trioxide (SO3) even below the dissociation limit of SO2. Other sulfur oxides such as SO and S2O2 have not been detected. Observed infrared spectra have been successfully compared with theoretical simulations for global minima of (SO2)n (n = 2-10) obtained by the minima hopping method combined with density functional tight-binding (DFTB) method.

引用

页数：5