Abstract
Two zinc binuclear complexes based on a hexaselenidobistannate bridging ligand, [{Zn(tren)}2(μ-Sn2Se6)] (1) and [{Zn(tepa)}2(μ-Sn2Se6)] (2) were prepared by solvothermal reactions of Zn, Sn, and Se in tris(2-aminoethyl)amine (tren) and tetraethylenepentamine (tepa) solvents, respectively. Compound 1 crystallizes in monoclinic space group C2/c, while 2 in tetragonal I4 1 /a. Acting as a bidentate bridging ligand, the bimeric [Sn2Se6]4− anion joins two [Zn(tren]2+ or two [Zn(tepa]2+ units via two trans terminal Se atoms to form the binuclear complexes 1 and 2, respectively. The Zn2+ ion is in a trigonal bipyramidal environment in 1 and in an octahedral environment in 2. Compounds 1 and 2 show well-defined absorption edges with band gaps of 2.38 and 2.31 eV at room temperature.
Graphical Abstract
New transition metal complexes base on hexaselenidobistannate ligand, [{Zn(tren)}2(μ-Sn2Se6)] and [{Zn(tepa)}2(μ-Sn2Se6)] were solvothermaly synthesized in tren and tepa (tren = tris(2-aminoethyl)amine, tepa = tetraethylenepentamine) solvents, respectively.
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This work was supported by the National Natural Science Foundation China (NSFC, no. 21171123), and the project funded by the Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions.
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Sun, Pp., Liu, Sz., Shen, Yl. et al. Solvothermal Syntheses, Crystal Structures and Optical Properties of New Members of Transition Metal Complexes Based on Hexaselenidobistannate Ligand. J Chem Crystallogr 47, 133–139 (2017). https://doi.org/10.1007/s10870-017-0689-8
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DOI: https://doi.org/10.1007/s10870-017-0689-8