Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 11 (November 2012)


organic compounds



tk5154 scheme

Acta Cryst. (2012). E68, o3127    [ doi:10.1107/S1600536812040718 ]

2,2'-Diiodoazobenzene

P. J. W. Elder and I. Vargas-Baca

Abstract: The molecular structure of the title compound, C12H8I2N2 [systematic name: (E)-bis(2-iodophenyl)diazene], exhibits an essentially planar trans geometry [maximum deviation = 0.022 (4) Å] with the iodine atoms ortho to the azo bridge. In the crystal, offset [pi]-stacking leads to the formation of columns along the a axis [closest C...C distance = 3.383 (4) Å].


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