Octahedral rhenium cluster complexes of the composition [{Re6(μ3-Q)8}(imz-[1,2-a]py)6]Br2, where Q = S, Se, are obtained by the interaction of Csn[{Re6(μ3-Q8)}Br6] (n = 4 for Q = S; n = 3 for Q = Se) with an excess of imidazo-[1,2-а]pyridine in a sealed glass ampoule at 180 °С within two days. Both compounds are isostructural and crystallize in the trigonal space group \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$R\bar{3}$$\end{document}. The crystal structure of the complexes represents three differently directed chains of [{Re6Q8}(imz-[1,2-a]py)6]2+ cations and bromine anions linked with each other by С–H⋯Br⋯H–C hydrogen bonds. The compounds obtained have pronounced luminescence with emission maxima at 652 nm and 678 nm for Q = S, Se respectively.

中文翻译：

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铼簇的晶体结构和发光特性 [{Re6(μ3-Q)8}(imz-[1,2-a]py)6]Br2

组成为[{Re6(μ3-Q)8}(imz-[1,2-a]py)6]Br2的八面体铼簇配合物，其中Q = S，Se，通过Csn[{Re6 (μ3-Q8)}Br6]（对于 Q = S，n = 4；对于 Q = Se，n = 3）在密封的玻璃安瓿中，在 2天。两种化合物在三角空间群 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \ usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$R\bar{3}$$\end{document}。复合物的晶体结构代表了 [{Re6Q8}(imz-[1,2-a]py)6]2+ 阳离子和溴阴离子的三个不同定向链，它们通过 С–H⋯Br⋯H–C 相互连接氢键。