Acta Cryst. (2005). E61, o944-o946  [ doi:10.1107/S1600536805006823 ]

1,3-Diiodoazulene

X.-Y. Chen, J. R. Dias, D. R. Powell, J. D. Van Horn and T. C. Sandreczki

Abstract: In the structure of 1,3-diiodoazulene, C₁₀H₆I₂, as expected, the molecule is planar. Also observed are short contacts between I atoms and between I and ring C atoms. The crystal structure of this compound exhibits two sets of parallel layers, nearly perpendicular to each other. The layers are formed by charge-charge interactions between some I atoms and nearby seven-membered rings of molecules in an adjacent layer. The packing is also affected by attractive dispersion forces between I atoms in adjacent layers.

Online 18 March 2005

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