trans-4-Bromo-ONN-azoxybenzene at 100 K.
The crystal structure of the alpha isomer of trans-4-bromoazoxybenzene [systematic name: trans-1-(bromophenyl)-2-phenyldiazene 2-oxide], C(12)H(9)BrN(2)O, has been determined by X-ray diffraction. The geometries of the two molecules in the asymmetric unit are slightly different and are within approximately 0.02 A for bond lengths, approximately 2 degrees for angles and approximately 3 degrees for torsion angles. The azoxy bridges in both molecules have the typical geometry observed for trans-azoxybenzenes. The crystal network contains two types of planar molecules arranged in columns. The torsion angles along the Ar-N bonds are only 7 (2) degrees, on either side of the azoxy group.
Ejsmont
Krzysztof
K
Institute of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland.
Domański
Andrzej A
AA
Kyzioł
Janusz B
JB
Zaleski
Jacek
J