Crystal Structure of Bis(nitrosocyclohexane)

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Abstract The crystal structure of bis(nitrosocyclohexane), (C6H11NO)2, has been determined by means of three-dimensional X-ray analysis by the photographic method. The crystal belongs to the triclinic space group P \bar1, with cell parameters, a=10.133 A, b=6.758 A, c=5.583 A, α=121°42′, β=96°50′, γ=78°06′. The unit cell contains one molecule. The nitrogen and oxygen atoms and the carbon atoms bound to nitroso-groups, CNO–O′N′C′, are almost coplanar, and the oxygen atoms take a trans configuration around the N–N′ bond. The cyclohexane ring takes a chair form and the nitrogen atom is bound to an equatorial bond. The CNO-O′N′C′ plane is twisted from the cyclohexane ring by 73°.