Acta Cryst. (2005). E61, o941-o943  [ doi:10.1107/S1600536805006811 ]

1,3-Dibromoazulene

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

Abstract: In the structure of 1,3-dibromoazulene, C₁₀H₆Br₂, the planar molecule sits on a crystallographic mirror plane. The Br atoms are attached to the five-membered ring adjacent to the ring fusion. Head-to-tail charge-charge interactions due to partial positive charges on ring H atoms and partial negative charges within the aromatic ring system attract adjacent 1,3-dibromoazulene molecules together. This causes them to arrange themselves in a zigzag pattern that allows close packing of the oppositely charged groups.

Online 18 March 2005

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