Acta Cryst. (2004). E60, m563-m565  [ doi:10.1107/S1600536804008098 ]

[{(H₃C)₃NB(H)₂NC}₂Au][AuI₂]: a linear chain polymer of gold(I) iodide with an unusual isocyanoborane ligand showing aurophilic behaviour

W. C. Kaska, H. A. Mayer, M. R. J. Elsegood, P. N. Horton, M. B. Hursthouse, C. Redshaw and S. M. Humphrey

Abstract: Treatment of the (isocyanoborane)gold(I) chloride adduct [LAuCl] [L = (H₃C)₃NB(H)₂NC] with KI at room temperature yields the unusal title compound, bis[isocyano(trimethylamino)borane]gold(I) diiodoaurate(I), [Au(C₄H₁₁BN₂)₂][AuI₂], which forms via an in situ rearrangement of isocyanoborane and halide ligands. The structure consists of alternating [L₂Au]⁺ and [AuI₂]^- ions, which form an infinite linear one-dimensional chain due to aurophilic AuAu interactions. Both Au atoms occupy inversion centres.

Online 17 April 2004

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