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(Z)-4-[(2-Amino-anilino)(phen-yl)methyl-idene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one. 2011

Rong Lu, and Hua Xia, and Xingqiang Lü, and Shunsheng Zhao

The mol-ecule of the title compound, C(23)H(20)N(4)O, assumes a non-planar conformation in which the pyrazolone ring forms dihedral angles of 10.33 (11), 65.34 (11) and 63.52 (10)° with the three benzene rings. In the crystal, the mol-ecules are linked by inter-molecular N-H⋯N hydrogen bonds, generating chains parallel to the b axis. The secondary amino group is involved in an intra-molecular N-H⋯O hydrogen bond.

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