Farook Adam

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In the title compound, C24H20N2, the dihedral angles between the pyrazole ring and the pendant phenyl, toluoyl and phenyl-ethenyl rings are 41.50 (8), 4.41 (8) and 31.07 (8)°, respectively. In the crystal, inversion dimers linked by a π-π stacking inter-actions between the phenyl-ethenyl rings are observed [centroid-centroid separation = 3.5857 (9) Å].
In the crystal structure of the title salt, C(3)H(7)N(6) (+)·NO(3) (-)·C(3)H(6)N(6)·H(2)O, the asymmetric unit consists of two neutral melamine (1,3,5-triazine-2,4,6-triamine) mol-ecules, two melaminium cations, two nitrate anions and two solvent water mol-ecules. One of the nitrate anions is disordered over two sets of positions, with a refined occupancy(More)
There are two mol-ecules in the asymmetric unit of the title compound, C9H10N2OS. In one, the dihedral angle between the aromatic ring and the carbamo-thioyl group is 52.31 (7)° and in the other it is 36.16 (6)°. Each mol-ecule features an intra-molecular N-H⋯O hydrogen bond, which generates an S(6) ring and the O and S atoms have an anti disposition. In(More)
In the title compound, C15H15N3OS, there is an intra-molecular N-H⋯O hydrogen bond and an intra-molecular C-H⋯S hydrogen bond involving the C=O and C=S bonds which lie on opposite sides of the mol-ecule. The mol-ecule is non-planar with the benzene and pyridine rings being inclined to one another by 26.86 (9)°. In the crystal, mol-ecules are linked by pairs(More)
In the mol-ecule of the title compound, C21H17N3O2, the 5,6-di-hydro-benzimidazo[1,2-c]quinazoline moiety is disordered over two orientations about a pseudo-mirror plane, with a refined occupancy ratio of 0.863 (2):0.137 (2). The dihedral angles formed by the benzimidazole ring system and the benzene ring of the quinazoline group are 14.28 (5) and 4.7 (3)°(More)
In the title compound, C16H17N3OS, a benzoyl thio-urea derivative, the planes of the pyridine and benzene rings are inclined to one another by 66.54 (9)°. There is an intra-molecular N-H⋯O hydrogen bond present forming an S(6) ring motif. In the crystal, mol-ecules are linked via pairs of N-H⋯N hydrogen bonds, forming inversion dimers, which are reinforced(More)
The title compound, C20H20N2O, was studied as a part of our work on pyrazoline derivatives. It represents a trans-isomer. The central pyrazoline ring adopts an envelope conformation with the asymmetric C atom having the largest deviation of 0.107 (1) Å from the mean plane. It forms dihedral angles of 6.2 (1) and 86.4 (1)° with the adjacent p-tolyl and(More)
The title compound, C19H21N3O, comprises a central pyrazole ring which is N-connected to an aldehyde group and C-connected twice to substituted benzene rings. The pyrazole ring is twisted on the C-C single bond, and the least-squares plane through this ring forms dihedral angles of 82.44 (5) and 4.52 (5)° with the (di-methyl-amino)-benzene and p-tolyl(More)