Wang ML, Dong BL, Li YH. 1-[5-(Anthracen-9-yl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl]ethanone.
Acta Crystallogr Sect E Struct Rep Online 2010;
67:o94. [PMID:
21522803 PMCID:
PMC3050129 DOI:
10.1107/s160053681005018x]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Accepted: 12/01/2010] [Indexed: 05/05/2024]
Abstract
In the title compound, C(25)H(20)N(2)O, the pyrazoline ring is nearly planar [maximum atomic deviation = 0.0254 (17) Å]; but the anthracene ring system is distorted from a coplanar structure [maximum atomic deviation = 0.181 (3) Å], the dihedral angle between the outer benzene rings being 10.68 (13)°. The pyrazoline ring is almost perpendicular to the mean plane of the anthracene ring system [dihedral angle = 76.94 (8)°], but nearly coplanar with the phenyl ring [dihedral angle = 1.63 (7)°]. π-π stacking is observed between parallel benzene rings of adjacent anthracene units, the face-to-face distance being 3.27 (3) Å. Weak intra-molecular C-H⋯N hydrogen bonding also occurs.
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