5-(3-Fluoro-phen-yl)-1-phenyl-pyrazolidin-3-one.

In the mol-ecule of the title compound, C(15)H(13)FN(2)O, the phenyl and fluorophenyl rings are oriented at a dihedral angle of 77.92 (3)°. The pyrazolidine ring adopts an envelope conformation. An intra-molecular C-H⋯N hydrogen bond results in the formation of a five-membered ring adopting an envelope conformation. In the crystal structure, inter-molecular N-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules. There are C-H⋯π contacts between between aromatic H atoms and the phenyl and fluorophenyl rings. A π-π contact between phenyl rings [centroid-centroid distance = 3.926 (1) Å] is also observed.

2,3,4,6-Tetra-O-acetyl-1-O-(4-methoxy-cinnamo-yl)-ß-d-glucopyran-ose.

Mol-ecules of the title compound, C(24)H(28)O(12), are linked by inter-molecular C-H⋯O hydrogen bonds. Bond lengths and angles are normal.

(S)-(-)-Methyl 2-(p-tolyl-sulfon-yloxy)-propanoate.

In the title compound, C(11)H(14)O(5)S, there is an intra-molecular C-H⋯O hydrogen bond, for which the C-C-S-O torsion angle involving the acceptor and donor atoms is 2.4 (4)°. The dihedral angle between the benzene ring and the methoxy-carbonyl plane is 52.7 (4)°. In the crystal structure, mol-ecules are linked via inter-molecular C-H⋯O hydrogen bonds, forming a mol-ecular chain along the b axis.

2-[Bis(3,5-dimethyl-phen-yl)-phosphor-yl]-propan-2-ol hemihydrate.

In the organic mol-ecule of the title compound, C(19)H(25)O(2)P·0.5H(2)O, the benzene rings are oriented at a dihedral angle of 54.04 (3)°. Intra-molecular C-H⋯O hydrogen bonds result in the formation of two five-membered planar rings, which are oriented with respect to the adjacent benzene rings at dihedral angles of 2.66 (3) and 2.79 (3)°. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules. The water oxygen atom lies on a twofold rotation axis.

1-Phenyl-5-[4-(trifluoro-meth-yl)phen-yl]-pyrazolidin-3-one monohydrate.

In the mol-ecule of the title compound, C(16)H(13)F(3)N(2)O·H(2)O, the two benzene rings are oriented at a dihedral angle of 82.55 (3)° and the pyrazole ring adopts an envelope conformation. In the crystal structure, inter-molecular C-H⋯F hydrogen bonds link the mol-ecules into chains.

3,7-Dihydr-oxy-3,7-diphenyl-2H,6H-pyrrolo[3,4-f]isoindole-1,5(3H,7H)-dione methanol disolvate.

The asymmetric unit of the title compound, C(22)H(16)N(2)O(4)·2CH(4)O, contains one half-mol-ecule and a methanol solvent mol-ecule. The aromatic ring is oriented at a dihedral angle of 82.91 (3)° with respect to the planar indole ring systems. In the crystal structure, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into chains along the b axis.