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(Z)-3-Methyl-4-[1-(4-methyl-anilino)propyl-idene]-1-phenyl-1H-pyrazol-5(4H)-one.


ABSTRACT: In the title mol-ecule, C20H21N3O, the central pyrazole ring forms dihedral angles of 4.75?(9) and 49.11?(9)°, respectively, with the phenyl and methyl-substituted benzene rings. The dihedral angle between the phenyl and benzene rings is 51.76?(8)°. The amino group and carbonyl O atom are involved in an intra-molecular N-H?O hydrogen bond. In the crystal, ?-? inter-actions are observed between benzene rings [centroid-centroid seperation = 3.892?(2)?Å] and pyrazole rings [centroid-centroid seperation = 3.626?(2)?Å], forming chains along [111]. The H atoms of the methyl group on the p-tolyl substituent were refined as disordered over two sets of sites in a 0.60?(4):0.40?(4) ratio.

SUBMITTER: Sharma N 

PROVIDER: S-EPMC3793766 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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(Z)-3-Methyl-4-[1-(4-methyl-anilino)propyl-idene]-1-phenyl-1H-pyrazol-5(4H)-one.

Sharma Naresh N   Vyas Komal M KM   Jadeja R N RN   Kant Rajni R   Gupta Vivek K VK  

Acta crystallographica. Section E, Structure reports online 20130717 Pt 8


In the title mol-ecule, C20H21N3O, the central pyrazole ring forms dihedral angles of 4.75 (9) and 49.11 (9)°, respectively, with the phenyl and methyl-substituted benzene rings. The dihedral angle between the phenyl and benzene rings is 51.76 (8)°. The amino group and carbonyl O atom are involved in an intra-molecular N-H⋯O hydrogen bond. In the crystal, π-π inter-actions are observed between benzene rings [centroid-centroid seperation = 3.892 (2) Å] and pyrazole rings [centroid-centroid sepera  ...[more]

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