Octahedral cyanohydroxo cluster complex trans-[Re6Se 8(CN)4(OH)2]4-: Synthesis, crystal structure, and properties

Yuri V. Mironov, Konstantin A. Brylev, Sung Jin Kim, Svetlana G. Kozlova, Noboru Kitamura, Vladimir E. Fedorov

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A hexarhenium cyanohydroxo anionic cluster complex [Re6Se 8(CN)4(OH)2]4- was synthesized for the first time starting from [Re6Se8(OH)6] 4-, which was crystallized as a salt of the composition Cs 2.75K1.25[Re6Se8(CN) 4(OH)2]·H2O (1). The reaction of the complex with Cu2+ in an aqueous ammonia or methylamine solutions afforded [Cu(NH3)5]2[Re6Se 8(CN)4(OH)2]·8H2O (2) or [{Cu(CH3NH2)4}2Re6Se 8(CN)4(OH)2] (3), respectively. All of these three compounds were characterized by a single-crystal X-ray diffraction method. Compound 1 is crystallized in the tetragonal space group I4/m with eight formula units per cell (a = b = 17.4823(14) , c = 19.430(2) , V = 5938.3(10) 3); compound 2 is crystallized in the monoclinic space group P2 1/n with two formula units per cell (a = 12.1845(13) , b = 8.6554(9) , c = 19.2568(19) , β = 91.081(2)°, V = 2030.5(4) 3); compound 3 is crystallized in the orthorhombic space group Cmcm with four formula units per cell (a = 19.816(4) , b = 14.611(3) , c = 13.751(3) , V = 3981.2(13) 3). The luminescence properties of 1 were studied in both aqueous solution and solid state. In addition, the electronic structure of [Re6Se8(CN)4(OH)2]4- was elucidated by DFT calculations.

Original languageEnglish
Pages (from-to)363-368
Number of pages6
JournalInorganica Chimica Acta
Issue number1
StatePublished - 15 May 2011

Bibliographical note

Funding Information:
This research was supported by the Russian Foundation for Basic Research (Grant Nos. 08-03-00267, 09-03-92004), Interdisciplinary Grant No. 76 and by the State Contract No. 02.740.11.0628. Also K. A. Brylev thanks the Japan Society for the Promotion of Science (JSPS) for a Post Doctoral Fellowship for Foreign Researchers.


  • Cluster compounds
  • Crystal structure
  • Electronic structure
  • Luminescence
  • Rhenium


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