%0 Journal Article
%T 4-{[(E)-(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methylidene]amino}-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
%A Hoong-Kun Fun
%A Madhukar Hemamalini
%A Abdullah M. Asiri
%A Salman A. Khan
%J Acta Crystallographica Section E
%D 2010
%I International Union of Crystallography
%R 10.1107/s1600536810021173
%X The title Schiff base compound, C23H23N5O, was synthesized by the reaction of 4-aminophenazone and 3,5-dimethyl-1-phenylpyrazole-4-carbaxaldehyde. The molecule adopts an E configuration about the central C=N double bond. A weak intramolecular C¡ªH...O hydrogen bond generates an S(6) ring motif. The dihedral angle between the pyrazole rings is 24.72 (10)¡ã and the dihedral angles between the pyrazole rings and the adjacent phenyl rings are 58.67 (10) and 46.58 (11)¡ã. The crystal structure is stabilized by weak C¡ªH...¦Ð interactions involving the pyrazolone and phenyl rings.
%U http://scripts.iucr.org/cgi-bin/paper?S1600536810021173