Crystal structure of Hydroxyimino(N,N'-dimethyl)malonamide

Abstract

The crystal structure of the title compound, namely hydroxyimino(N,N?- dimethyl)malonamide (MeNHCOC(=NOH)CONHMe), has been determined by single-crystal X-ray diffraction with diffractometer data at 295 K. The structure was solved by direct methods and refined by least squares to a residual of 0.055 for 1477 observed reflections.     Crystal data: monoclinic, P2₁/n, a 15.508(3), b 10.544(2), c 9.377(1) Ǻ, β 103.15(2)°, Z 8.     The two crystallographically independent molecules exhibit little conjugation throughout the C-C-C skeleton (<C-C> 1.50 Ǻ), the molecule being non-planar. <C=O> is 1.23₄, <N-CH₃> 1.44₃, <OC-N> 1.32₃, <C-NO> 1.27₈ and (N-O) 1.37₅ Ǻ. The geometry is compared with those observed for several related derivatives.