在230-440nm波段,研究了复合物Mg^+-S2(CH3)2的光解离光谱。此波段内的复合物光诱导产物的质谱揭示,存在着非反应猝灭产物Mg^+和反应产物Mg^+-SCH3。反应产物来源于Mg^+离子插入S-S化学键,导致复合物解离的过程。复合物的光解离光谱由三个对应于离子Mg^+(3^2P←3^2S)跃迁的谱峰构成。由量化计算中的CIS方法所获得的吸收谱理论值与实验吻合地较好。
Photodissociation spectra of the complex Mg^+-S2(CHa)2 in the spectral region of 230-440 nm was observed. Mass spectrometry of the products for photo-induced reaction in the complex Mg^+-S2(CH3)2 exhibits the product Mg^+ from nonreaction quenching and reactive products Mg^+-SCH3 throughout the whole wavelength range. The reactive products originate from the rupture of S-S chemical bonds. The photodissociation spectrum consists of two broad peaks corresponding to the atomic transition of Mg^+(3^2P← 3^2S). The absorption spectrum by CIS method of quantum chemistry calculation agrees with the experimental spectrum.