Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 9 (September 2006)

metal-organic compounds

sq3025 scheme

Acta Cryst. (2006). C62, m381-m385 [ doi:10.1107/S0108270106025972 ]

Tetrakis[2-(2-pyridyl)pyridinium] tetra-₃-iodo-hexa-₂-iodo-dodecaiodohexabismuthate and bis[tris(2,2'-bipyridine)ruthenium(II)] di-₄-iodo-octa-₂-iodo-dodecaiodohexabismuthate

A. M. Goforth, M. A. Tershansy, M. D. Smith, L. Peterson Jr and H.-C. zur Loye

Abstract: Crystals of the title compounds were grown solvothermally in an ethanol-water solvent mixture using ruthenium triiodide, 2,2'-bipyridine and bismuth triiodide as starting materials. Tetrakis[2-(2-pyridyl)pyridinium] tetra- [mu] ₃-iodo-hexa- [mu] ₂-iodo-dodecaiodohexabismuthate, (C₁₀H₉N₂)₄[Bi₆I₂₂], crystallizes in the triclinic space group P $\overline{1}$ and is the major reaction product. The asymmetric unit of this compound consists of half a centrosymmetric [Bi₆I₂₂]^4- anion and two independent 2,2'-bipyridinium cations. The minor product of the reaction is bis[tris(2,2'-bipyridine)ruthenium(II)] di- [mu] ₄-iodo-octa- [mu] ₂-iodo-dodecaiodohexabismuthate, [Ru(C₁₀H₈N₂)₃]₂[Bi₆I₂₂], which also crystallizes in the triclinic space group P $\overline{1}$ . For this compound, the asymmetric unit consists of one full [Ru(2,2'-bipyridine)₃]²⁺ cation and half a centrosymmetric [Bi₆I₂₂]^4- anion. Although both compounds contain a centrosymmetric [Bi₆I₂₂]^4- anion, the polyhedral arrangement of the distorted BiI₆ octahedra in the two compounds is quite different, and the anion of the latter compound has not previously been observed in iodobismuthate chemistry.

Formula: (C₁₀H₉N₂)₄[Bi₆I₂₂] and [Ru(C₁₀H₈N₂)₃][Bi₆I₂₂]


	Structure factor file (CIF format) (474.8 kbytes) [ doi:10.1107/S0108270106025972/sq3025Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (495.6 kbytes) [ doi:10.1107/S0108270106025972/sq3025IIsup3.hkl ] Contains datablock II

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