STRUCTURE OF N-BENZYL-3-BENZYLIDENE-4-METHYL-4-NITRO-5-PHENYL-2-PYRROLIDINONE

C25H22N2O3, M(r), = 398.47, orthorhombic, Pbn2(1), a = 9.385 (4), b = 12.314 (4), c = 18.573 (6) angstrom, V = 2146.42 angstrom3, Z = 4, D(m) = 1.237, D(x) = 1.233 g cm-3, lambda(Mo K-alpha) = 0.7107 angstrom, mu = 0.47 cm-1, F(000) = 840, T = 298 K, final R = 0.039 for 1518 observed reflections. Results of X-ray analysis reveal that the methyl group and the phenyl ring attached respectively to the centres at C(4) and C(5) are cis with respect to each other. The phenyl ring attached to the olefinic C atom is also in a cis orientation with respect to the 4-methyl group.