(E)-3-(4-Chloro­phen­yl)-1-(2-fur­yl)prop-2-en-1-one

In the title mol­ecule, C13H9ClO2, the benzene and furyl rings are slightly twisted from each other with a dihedral angle of 5.1 (1)°. An intra­molecular C—H⋯O hydrogen-bond inter­action generates an S(5) ring motif. In the crystal structure, mol­ecules are stacked along the b axis and the crystal packing is stabilized by weak inter­molecular C—H⋯O hydrogen bonds

(E)-3-(2-Chloro­phen­yl)-1-(3-methoxy­phen­yl)prop-2-en-1-one

The title compound, C16H13ClO2, adopts an E configuration with respect to the double bond of the propenone unit. The two benzene rings are twisted slightly from each other, making a dihedral angle of 7.14 (5)°. The mol­ecules are arranged in stacks, in which adjacent mol­ecules are related by inversion symmetry and form π–π inter­actions with a centroid–centroid distance of 3.7098 (6) Å. C—H⋯O and C—H⋯π inter­actions are formed between neighbouring mol­ecules

(E)-3-(4-Methyl­phen­yl)-1-(4-nitro­phenyl)prop-2-en-1-one

The asymmetric unit of the title compound, C16H13NO3, contains two independent mol­ecules related approximately by a pseudo-twofold rotation axis. The dihedral angle between the nitro­benzene and methyl­phenyl rings is 42.18 (6)° in one mol­ecule and 12.97 (6)° in the other. In both mol­ecules, the nitro group is slightly twisted away from the attached benzene ring. In the crystal structure, the mol­ecules are stacked along the b axis and are linked via C—H⋯O and C—H⋯π inter­actions

3-(2,4-Dichloro­phen­yl)-1,5-di-2-furylpentane-1,5-dione

In the title compound, C19H14Cl2O4, intra­molecular C—H⋯O and C—H⋯Cl hydrogen bonds generate S(6) and S(5) ring motifs, respectively. In the crystal structure, inter­molecular C—H⋯O inter­actions between symmetry-related mol­ecules involving two methyl­ene groups and an O atom as a bifurcated acceptor generate an R 2 1(6) ring motif. In the mol­ecule, one of the furan rings is rotationally disordered by approximately 180° about the single C—C bond to which it is attached; the refined site-occupancy factors are 0.505 (7) and 0.495 (7). The major component of the disordered furan ring and the benzene ring form a dihedral angle of 88.8 (4)°. The dihedral angle between the major disorder component and the other furan ring is 81.9 (4)°. In addition, the crystal structure is stabilized by further inter­molecular C—H⋯O (×2) hydrogen bonds and C—H⋯π inter­actions

2,5-Dimethoxy­benzaldehyde thio­semicarbazone

In the title mol­ecule, C10H13N3O2S, the dihedral angle between benzene and –N—C(=S)—N—N=C– planes is 9.20 (6)°. The two meth­oxy groups are coplanar with the benzene ring [C—O—C—C torsion angles of −2.31 (18) and −6.45 (17)°]. In the crystal structure, mol­ecules are linked by inter­molecular N—H⋯S, N—H⋯O and C—H⋯O hydrogen bonds, forming a three-dimensional network

1-(2,4-Dichloro­phen­yl)-3-(4-methyl­phen­yl)prop-2-en-1-one

The mol­ecule of the title compound, C16H12Cl2O, adopts an E configuration. The dihedral angle between the two benzene rings is 42.09 (5)°. In the crystal structure, mol­ecules are linked into a three-dimensional framework by weak C—H⋯O inter­actions and by C—H⋯π inter­actions involving the methyl­phenyl ring

3-Hydr­oxy-4-methoxy­benzaldehyde thio­semicarbazone hemihydrate

The asymmetric unit of the title compound, C9H11N3O2S·0.5H2O, comprises two crystallograpically independent thio­semicarbazone mol­ecules (A and B) and a water mol­ecule of crystallization. In each of the thio­semicarbazone mol­ecules, intra­molecular O—H⋯O and N—H⋯N hydrogen bonds form five-membered rings, producing S(5) ring motifs. Inter­molecular O—H⋯S and N—H⋯O inter­actions between mol­ecule B and the water mol­ecule form a six-membered ring, producing an R 2 2(6) ring motif. Inter­molecular N—H⋯S hydrogen bonds form dimers involving pairs of both A and B mol­ecules, which form R 2 2(8) ring motifs. The angles between the aromatic ring and thio­urea unit in the two mol­ecules are 0.80 (6) and 3.28 (5)°, which proves that each mol­ecule is fairly planar. The crystal structure is stabilized by inter­molecular O—H⋯S (×2), O—H⋯O, N—H⋯S (×2) and N—H⋯O (×2) hydrogen bonds and C—H⋯O (×2) contacts to form a three-dimensional network