(2E)-1-(2,5-Dimethyl­thio­phen-3-yl)-3-(3-nitro­phen­yl)prop-2-en-1-one

In the title compound, C15H13NO3S, the benzene ring and the five-membered heterocyclic ring are oriented at a dihedral angle of 12.00 (6)°. In the crystal, C—H⋯O inter­actions generate two types of cyclic motifs, R 2 2(14) and R 2 2(26), connecting the mol­ecules into tapes extending along [101]. In addition, there are π–π stacking inter­actions between the benzene and thio­phene rings with centroid-centroid distances of 3.7263 (14) and 3.7487 (14) Å

2-Amino-4-(3,4-dimeth­oxy­phen­yl)-5,6-dihydro­benzo[h]quinoline-3-carbo­nitrile–3-amino-1-(3,4-dimeth­oxy­phen­yl)-9,10-dihydro­phenanthrene-2,4-dicarbonitrile (1/19)

The asymmetric unit of the 1:19 title co-crystal of 2-amino-4-(3,4-dimeth­oxy­phen­yl)-5,6-dihydro­benzo[h]quinoline-3-carbo­nitrile and 3-amino-1-(3,4-dimeth­oxy­phen­yl)-9,10-dihydro­phenanthrene-2,4-dicarbonitrile, 0.05C22H19N3O2·0.95C24H19N3O2, has the atoms of the fused-ring system and those of the amino, cyano and dimeth­oxy­phenyl substitutents overlapped. The fused-ring system is buckled owing to the ethyl­ene linkage in the central ring with the two flanking aromatic rings being twisted by 31.9 (1)°. The ring of the dimeth­oxy­phenyl substituent is twisted by 72.4 (1)° relative to the amino- and cyano-bearing aromatic ring. In the crystal, mol­ecules are linked by duplex amine N—H⋯O(meth­oxy) hydrogen bonds in a cyclic association [graph-set R 2 2(7)], generating a helical chain structure extending along [201]

N-[(E)-Anthracen-9-yl­methyl­idene]-3,4-dimethyl-1,2-oxazol-5-amine

In the title compound, C20H16N2O, an intra­molecular C—H⋯N forms an S(6) ring motif. In the crystal, the mol­ecules are stacked with their anthracene ring planes in sheets along [100]

1-Chloro-1-[(4-nitro­phen­yl)hydrazinyl­idene]propan-2-one

The non-H atoms of the title compound, C9H8ClN3O3, lie approximately on a plane (r.m.s. deviation = 0.111 Å), and the C=N double bond has a Z configuration. In the crystal, adjacent mol­ecules are linked by an N—H⋯Ocarbon­yl hydrogen bond, forming a chain running along [101]

1-Chloro-1-[(4-methyl­phen­yl)hydrazinyl­idene]propan-2-one

The asymmetric unit of the title compound, C10H11ClN2O, contains two mol­ecules. The non-H atoms of each mol­ecule lie approximately on a plane (r.m.s. deviations = 0.062 and 0.110 Å), and the C=N double bond has a Z-configuration in both independent mol­ecules. In the crystal, adjacent mol­ecules are linked by N—H⋯Ocarbon­yl hydrogen bonds, forming chains running along [100]

1-Chloro-1-[(4-meth­oxy­phen­yl)hydrazinyl­idene]propan-2-one

The non-H atoms of the title compound, C10H11ClN2O2, lie nearly on a plane (r.m.s. deviation = 0.150 Å), and the C=N double bond has a Z configuration. In the crystal, adjacent mol­ecules are linked by an N—H⋯Ocarbon­yl hydrogen bond, forming a chain running along [201]

(2Z)-1-(5-Hy­droxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-3-(4-methyl­anilino)­but-2-en-1-one

A twist is evident in the title compound, C21H21N3O2, the dihedral angle between the terminal six-membered rings being 29.46 (10)°; the linked five- and six-membered rings are coplanar [1.30 (11)°]. The carbonyl O atom accepts intra­molecular hydrogen bonds from the adjacent hy­droxy and amine groups. The three-dimensional crystal packing is achieved through C—H⋯π inter­actions

4-(3-Methyl-5-phenyl-1H-pyrazol-1-yl)benzene­sulfonamide

With respect to the planar five-membered ring of the title compound, C16H15N3O2S, the phenyl ring is aligned at 47.0 (1)° and the phenyl­ene ring at 37.6 (1)°. The amino group has the N atom in a pyramidal geometry; the group is a hydrogen-bond donor to the sulfonyl O atom of one mol­ecule and to the pyrazole N atom of another mol­ecule, resulting in the formation of a layer parallel to the bc plane

Ethyl N-[4-(3-methyl-4,5-dihydro­benzo[g]indazol-1-yl)phenyl­sulfon­yl]thio­carbam­ate ethanol monosolvate

The title compound, C21H20N3O3S2·CH3CH2OH, comprises two independent organic mol­ecules and two ethanol solvent mol­ecules. The mol­ecules are related by pseudo-mirror symmetry. In both mol­ecules, the N-bound benzene ring is twisted out of the plane of the pyrazole ring [the dihedral angles are 51.4 (3) and 44.1 (3)°, respectively]. Similarly, the benzene ring of the 1,2-dihydro­naphthalene residue is inclined with respect to the five-membered ring [dihedral angles 18.3 (3) and 22.2 (3)°]. Overall, each mol­ecule has a flattened U shape. Dimeric aggregates mediated by O—H⋯N(pyrazole) and amide-N—H⋯O hydrogen bonds feature in the crystal packing, whereby the ethanol mol­ecules link the independent organic mol­ecules, leading to four-mol­ecule aggregates