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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Infrared spectra and density functional theory calculations of coinage metal disulfide molecules and complexes
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Infrared spectra and density functional theory calculations of coinage metal disulfide molecules and complexes

机译:造币金属二硫键分子和配合物的红外光谱和密度泛函理论计算

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Sulfur diatomic molecules were reacted with laser ablated Cu, Ag, and Au atoms in excess argon and condensed at 7 K. Several reaction products were identified for each metal from matrix infrared spectra through sulfur-34 isotopic shifts, spectra of sulfur isotopic mixtures, and frequencies calculated by density functional theory. The linear centrosymmetric (CuS2)-Cu-63, (CuS2)-Cu-65, and AuS2 metal disulfide molecules were observed at 508.7, 504.8, and 455.9 cm(-1), respectively. The bent CuSS, AgSS, and AuSS isomers were identified from 608.6, 580.7, and 601.1 cm(-1) S-S stretching fundamentals, respectively. These group 11 metals also formed cyclic tetrasulfur molecules, MS4, in contrast to group 10 metal atoms, which formed side-bonded disulfur complexes M(S-2)(2).
机译:硫双原子分子与激光烧蚀后的过量氩气中的Cu,Ag和Au原子反应并在7 K处冷凝。从基质红外光谱,硫34同位素位移,硫同位素混合物的光谱以及通过密度泛函理论计算的频率。线性中心对称(CuS2)-Cu-63,(CuS2)-Cu-65和AuS2金属二硫化物分子分别在508.7、504.8和455.9 cm(-1)处观察到。分别从608.6、580.7和601.1 cm(-1)S-S拉伸基础上确定了弯曲的CuSS,AgSS和AuSS异构体。与第10组金属原子形成侧键合的二硫配合物M(S-2)(2)相比,这些第11组金属还形成了环状四硫分子MS4。

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