M. Subramanyam

(E)-1-[4-(Methyl­sulfan­yl)phen­yl]-3-phenyl­prop-2-en-1-one

In the title molecule, C16H14OS, the dihedral angle between the phenyl and benzene rings is 3.81 (15)°. The H atoms of the central enone group are trans. The propenone unit makes dihedral angles of 11.73 (18) and 11.62 (17)° with the benzene and phenyl rings, respectively. The crystal structure is stabilized by weak C—H⋯O and C—H⋯π interactions.

(2E)-1-(4-Methyl-phen-yl)-3-(2,3,5-trichloro-phen-yl)prop-2-en-1-one.

In the title molecule, C16H11Cl3O, the dihedral angle between the two benzene rings is 33.2 (1)°. The crystal packing is stabilized by C—H⋯O hydrogen bonds.

3-Methyl-5-(4-methyl-phen-yl)cyclo-hex-2-enone.

In the title molecule, C14H16O, the cyclohexene ring adopts an envelope conformation, with all substituents equatorial. Molecules are linked by C—H⋯O hydrogen bonds. A C—H⋯π interaction involving the benzene ring is also found in the crystal structure. The H atoms of both methyl groups are disordered equally over two positions.

4-(4-Bromo­phenyl­hydrazono)-1-(5-bromo­pyrimidin-2-yl)-3-methyl-2-pyrazolin-5-one

The asymmetric unit of the title compound, C14H10Br2N6O, contains two crystallographically independent molecules. The pyrazole ring of one molecule makes dihedral angles of 22.0 (3) and 3.5 (3)° with the pyrimidine and benzene rings, respectively; the corresponding values in the other molecule are 9.2 (3) and 2.1 (3)°, respectively. The molecules are linked by N—H⋯O, C—H⋯N and C—H⋯Br hydrogen bonds.

3-Methyl-5-(3-phenoxy­phen­yl)cyclo­hex-2-enone

In the title molecule, C19H18O2, the cyclohexene ring adopts an envelope conformation, with all substituents equatorial. The dihedral angle between the benzene and phenyl rings is 83.75 (16)°. No classical hydrogen bonds are found in the crystal structure.

1-Methyl-5-(4-methyl­phen­yl)-3-oxo­cyclo­hexane-1-carbonitrile

In the title molecule, C15H17NO, the cyclohexane ring adopts a chair conformation. The cyano and methyl groups at position 1 have axial and equatorial orientations, respectively. The benzene ring has an equatorial orientation. A C—H⋯π interaction involving the benzene ring is found in the crystal structure.

5-(4-Chloro-phen-yl)-1-methyl-3-oxocyclo-hexa-necarbonitrile.

In the title molecule, C14H14ClNO, the cyclohexane ring adopts a chair conformation. The cyano group and the methyl group have axial and equatorial orientations, respectively. The benzene ring has an equatorial orientation. A C—H⋯π interaction involving the benzene ring is found in the crystal structure.