Ba. Uzoukwu et al., Crystal structure of N,N '-ethylenbis(4-propanoyl-2,4-dihydro-5-methyl 2-phenyl-3H-pyrazol-3-oneimine), C28H32N6O2, Z KRIST-NEW, 216(1), 2001, pp. 151-152
C28H32N6O2, triclinic, P (1) over bar (No. 2), a = 7.911(3) Angstrom, b = 8
.250(3) Angstrom, c = 9.978(3) Angstrom, alpha = 88.99(2)degrees, beta = 86
.60(2)degrees, gamma = 75.91(2)degrees, V = 630.5 Angstrom (3), Z = 1, R-gt
(F) = 0.047, WRref(F-2) = 0.144, T = 293 K.