Pseudobinuclear, [Bi(S2CNiPr2)3]2, and Pseudopolymeric, [Bi(S2CNiPr2)2][Bi(S2CNiPr2)Cl3], Bismuth(III) Complexes: Synthesis, Supramolecular Self-Assembly (the Role of Secondary Bi⋅⋅⋅S, Bi⋅⋅⋅Cl, and S⋅⋅⋅Cl Interactions), and Thermal Behavior

Pseudobinuclear, [Bi(S2CNiPr2)3]2 (I), and 1D pseudopolymeric, [Bi(S2CNiPr2)2][Bi(S2CNiPr2)Cl3] (II), bismuth(III) complexes have been synthesized and structurally characterized. Secondary Bi⋅⋅⋅S, Bi⋅⋅⋅Cl, and S⋅⋅⋅Cl bonds combine mononuclear structural units of the complexes, playing a key role in self-assembly of their supramolecular structures. The thermal behavior of the compounds has been studied by simultaneous thermal analysis under an argon atmosphere. It has been determined by energy dispersive X-ray microanalysis and scanning electron microscopy that the residual substances after thermolysis of I/II are microcrystalline Bi2S3/Bi2S3, BiCl3.