title: Crystal structure of (Z)-1-(3,4-dichlorophenyl)-3-methyl-4-[(naphthalen-1-yl-amino)(p-tolyl)methylidene]-1H-pyrazol-5(4H)-one.
abstract: The title Schiff base compound, C28H21Cl2N3O, was synthesized by the condensation of 1-(3,4-di-chloro-phen-yl)-3-methyl-4-(4-methyl-benzo-yl)-1H-pyrazol-5(4H)-one with 1-aminona-phthalene. The p-tolyl ring is normal to the pyrazole ring, with a dihedral angle of 88.02 (14)°, and inclined to the naphthalene ring system by 78.60 (12)°. The pyrazole ring is inclined to the naphthalene ring system and the di-chloro-substituted benzene ring by 63.30 (12) and 11.03 (13)°, respectively. The amino group and carbonyl oxygen atom are involved in an intra-molecular N-H⋯O hydrogen bond enclosing an S(6) ring motif. There is also a short C-H⋯O contact involving the carbonyl O atom and the adjacent benzene ring. In the crystal, mol-ecules are linked by C-H⋯π inter-actions, forming a three-dimensional structure.
authors.affiliation: Post-Graduate Department of Physics & Electronics, University of Jammu, Jammu Tawi 180 006, India.
authors.forename: Naresh
authors.initials: N
authors.lastname: Sharma
authors.affiliation: Department of Chemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390 002, India.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Parihar
authors.affiliation: Department of Chemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390 002, India.
authors.forename: R N
authors.initials: RN
authors.lastname: Jadeja
authors.affiliation: Post-Graduate Department of Physics & Electronics, University of Jammu, Jammu Tawi 180 006, India.
authors.forename: Rajni
authors.initials: R
authors.lastname: Kant
authors.affiliation: Post-Graduate Department of Physics & Electronics, University of Jammu, Jammu Tawi 180 006, India.
authors.forename: Vivek K
authors.initials: VK
authors.lastname: Gupta
keywords: Schiff base; crystal structure; naphthalene; pyrazolone; pyrrole