Samshuddin, S. and Narayana, B. and Yathirajan, H.S. and Safwan, A.P. and Tiekink, E.R.T. (2010) 3,5-Bis(4-bromophenyl)-1-phenyl-4,5-dihydro-1H-pyrazole. Acta Crystallographica Section E: Structure Reports Online, 66 (6). O1279-U299. ISSN 1600-5368,

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In the title compound, C(21)H(16)Br(2)N(2), the central pyrazole ring adopts an flattened envelope conformation, with the stereogenic C atom in the flap position. The deviations from planarity for this ring are relatively minor (r.m.s. deviation = 0.045 angstrom) and the dihedral angles formed with the N- and C(imine)-bound benzene rings are 7.73 (13) and 11.00 (13)degrees, respectively. By contrast, the benzene ring bound at the chiral C atom is almost orthogonal to the rest of the molecule; the dihedral angle formed between this ring and the pyrazole ring is 79.53 (13)degrees. In the crystal, the packing is stabilized by C-H center dot center dot center dot N and C-H center dot center dot center dot Br interactions.

Item Type: Article
Subjects: Q Science > QD Chemistry
Depositing User: Mr Faizal 2
Date Deposited: 20 Apr 2015 02:40
Last Modified: 31 Jan 2019 04:53
URI: http://eprints.um.edu.my/id/eprint/13291

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