Crystal and Molecular Structure of Ethyl 2-[(4-Hydroxy-phenyl)-hydrazono]-3-oxobutanoate

Abstract

The title compound, C12N2O4H14 (M-r = 250.3), crystallizes in triclinic P (1) over bar space group with a = 7.7709(9), b = 8.7534(11), c = 9.6958(12) angstrom, alpha = 77.103(2), beta = 80.496(2), gamma = 86.726(2)degrees, V = 633.9(1) angstrom(3), Z = 2, F(000) = 264, D-c = 1.311 Mg/m(3), mu(MoK alpha) = 0.1 mm(-1), the final R = 0.056, and wR = 0.15 for 2239 observed reflections (I > 2 sigma(I)). The molecules in the crystal are linked through,O-H center dot center dot center dot O type of hydrogen bonding interaction forming an infinite chain-like structure. The phenylhydrazone ring and oxobutanoate groups are almost planar. The keto hydrazo group adopts a Z-configuration in the molecule and the torsion angle is -177.6(2)degrees.