92.16(1)" (trans-LH2). The new complexes [Pd(LH2)4]X2 (X = Cl, Br), [Pt(LH2)4]X2 (X = Br, I), [PdX2(LH2)2] (X = Cl, Br, I) and [PtX2(LH2)2] (X = Cl, I) were prepared and characterized by elemental analyses and spectroscopic (IR, far-IR, Raman) studies. All data are discussed in terms of the nature of bonding in conjunction with assigned structures. The LH2 molecule behaves as a monodentate ligand binding
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硫代丙二酰胺 (LH2) 的顺式和反式形式已通过振动光谱、热技术和单晶 X 射线衍射进行了充分表征。顺式在单斜空间群 P21/c 中结晶,反式在单斜空间群 C2/c 中结晶。各自的晶格常数为 a = 5.602(3), b = 9.055(2), c = 10.945(5)Å, β = 101.29(2)" (cis-LH2) 和 a = 20.336(7), b = 4.317 (1), c = 12.432(5) Å, β = 92.16(1)"(反式 LH2)。新配合物 [Pd(LH2)4]X2 (X = Cl, Br), [Pt(LH2)4]X2 (X = Br, I), [PdX2(LH2)2] (X = Cl, Br, I ) 和 [PtX2(LH2)2] (X = Cl, I) 通过元素分析和光谱(