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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Another example for the ability of the SbS33- anion to act as a bidentate ligand: Solvothermal synthesis, crystal structure, calculated and experimental Raman spectra of [Cr(tren)SbS3]center dot H2O
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Another example for the ability of the SbS33- anion to act as a bidentate ligand: Solvothermal synthesis, crystal structure, calculated and experimental Raman spectra of [Cr(tren)SbS3]center dot H2O

机译:SbS33-阴离子充当二齿配体的能力的另一个例子:溶剂热合成,晶体结构,[Cr(tren)SbS3]中心点H2O的计算和实验拉曼光谱

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摘要

The new charge neutral complex [Cr(tren)SbS3] center dot H2O was synthesized under solvothermal conditions applying CrCl3 center dot 6H(2)O, Sb2S3, and S as starting material in an aqueous tren solution (tren = tris(2-aminoethyl)amine)). The compound crystallizes in the non-centrosymmetric space group P2(1)2(1)2(1), with a = 8.7779(15), b = 10.7122(17), c = 15.4286(18) angstrom, V = 1450.8(4) angstrom(3). In the structure the Cr3+ ion is surrounded by four N atoms of the amine molecules and by two S atoms of a trigonal pyramidal [SbS3](3-) group, i.e., the latter acts as a bidentate ligand. A three-dimensional network is formed via hydrogen bonds between the complexes and water molecules. The main resonances in the Raman spectrum can be explained on the basis of calculated data. The most intense band is due to the Sb-S stretching vibration. The thermal properties were investigated by DTA-TG measurements. On heating [Cr(tren)SbS3] center dot H2O decomposes in two distinct steps. The first step corresponds to the removal of the water molecules and the second step to the loss of the tren ligand.
机译:在溶剂热条件下,以CrCl3中心点6H(2)O,Sb2S3和S为起始原料,在水溶液中合成了新的电荷中性配合物[Cr(tren)SbS3]中心点H2O(tren =三(2-氨基乙基) )胺))。该化合物在非中心对称空间群P2(1)2(1)2(1)中结晶,a = 8.7779(15),b = 10.7122(17),c = 15.4286(18)埃,V = 1450.8( 4)埃(3)。在该结构中,Cr 3+离子被胺分子的四个N原子和一个三角锥体[SbS3](3-)基团的两个S原子包围,即后者充当二齿配体。通过络合物和水分子之间的氢键形成三维网络。拉曼光谱中的主要共振可以基于计算的数据来解释。最强的带是由于Sb-S拉伸振动。通过DTA-TG测量研究热性能。加热[Cr(tren)SbS3]时,中心点H2O在两个不同的步骤中分解。第一步对应于水分子的去除,第二步对应于tren配体的损失。

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