3-(6-Benz­yloxy-2,2-dimethyl­perhydro­furo[2,3-d][1,3]dioxolan-5-yl)-5-(4-chloro­phen­yl)-4-nitro-2-phenyl-2,3,4,5-tetra­hydro­isoxazole

In the title compound, C29H29ClN2O7, the isoxazole and dioxolane rings adopt envelope conformations, and the furan ring adopts a twisted conformation. The crystal structure is stabilized by inter­molecular C—H⋯π inter­actions between a benz­yloxy methyl­ene H atom and the 4-chloro­phenyl ring of an adjacent mol­ecule, and by weak non-classical inter­molecular C—H⋯O hydrogen bonds. In addition, the crystal structure exhibits a Cl⋯O halogen bond of 3.111 (3) Å, with a nearly linear C—Cl⋯O angle of 160.7 (1)°

10-(2-Pyrid­yloxy)phenanthren-9-ol

In the title compound, C19H13NO2, the pyridyl ring makes a dihedral angle of 87.04 (6)° with the plane of the phenanthrene ring system. In the crystal, mol­ecules are linked through weak inter­molecular C—H⋯O hydrogen bonds and C—H⋯π inter­actions

3-(6-Benz­yloxy-2,2-dimethyl­perhydro­furo[2,3-d][1,3]dioxol-5-yl)-5-(4-bromo­phen­yl)-2-phenyl­perhydro­pyrrolo[3,4-d]isoxazole-4,6-dione

In the title compound, C31H29BrN2O7, the isoxazolidine ring adopts a twist conformation, while the tetrahydrofuran, dioxolone and pyrrole rings adopt envelope conformations. The structure is stabilized by inter­molecular C—H⋯O hydrogen bonds and C—H⋯π inter­actions

N-[(2-Hydr­oxy-5-methoxy­phen­yl)(3-nitro­phen­yl)meth­yl]acetamide

In the title compound, C16H16N2O5, the meth­oxy group is disordered with site occupancies of 0.20 (3) and 0.80 (3). The dihedral angle between the two aromatic rings is 73.7 (2)°. The crystal structure is characterized by intermolecular N—H⋯O, O—H⋯O, C—H⋯O and C—H⋯π hydrogen bonds

N-[(2-Hydr­oxy-1-naphthyl)(3-nitro­phenyl)meth­yl]acetamide

The title compound, C19H16N2O4, is of inter­est as a precursor to biologically active substituted quinolines and related compounds. The dihedral angle between the naphthalene ring system and the benzene ring is 81.9 (1)°. The crystal structure is stabilized by N—H⋯O inter­molecular hydrogen bonds, linking the mol­ecules into pairs around a center of symmetry. The crystal structure is further stabilized by inter­molecular O—H⋯O hydrogen bonds, which link the mol­ecules into chains running along a axis. An intra­molecular C—H⋯O short contact is also present

3-(1,2-Diphenyl­ethen­yl)-2-phenyl-1H-indole

In the title compound, C28H21N, the planar pyrrole ring makes dihedral angles of 1.5 (2), 42.4 (2), 65.4 (2) and 79.7 (1)°, with the least squares planes of the four phenyl rings. The mol­ecular structure and crystal packing are stabilized by weak inter- and intra­molecular C—H⋯π inter­actions

catena-Poly[ammonium (cadmium-tri-μ-thio­cyanato-κ4 S:N;κ2 N:S)–1,4,10,13,16-hexa­oxa­cyclo­octa­decane (1/1)]

In the title compound, {(NH4)[Cd(NCS)3]·C12H24O6}n, the Cd2+ ion, the ammonium cation, one of the SCN− ligands and the macrocycle are located on mirror planes. The thiocyanate anions act as bridging ligands between the CdII ions, leading to a polymeric chain arrangement extending along [001] around a twofold screw axis. The ammonium ions are contained within the bowl of the macrocycle via extensive N—H⋯O hydrogen bonding

1-Benzyl-3-(1,2-diphenyl­ethen­yl)-1H-indole

In the title compound, C29H23N, the planar [maximum deviation from the least squares plane = 0.056 (1) Å] indole ring makes dihedral angles of 83.4 (4), 69.9 (1) and 59.9 (1)°, with the least-squares planes of three benzene rings. The mol­ecular packing is stabilized by weak inter­molecular C—H⋯π inter­actions

[1-(3-Nitro­phen­yl)-2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazin-3-ylidine]malonaldehyde

The oxazine ring in the title compound, C21H14N2O5, adopts a flattened boat conformation. The nitro­phenyl ring and the naphthalene ring system enclose a dihedral angle of 89.2 (1)°. An intra­molecular hydrogen bond is formed between the NH group and one of the adjacent carbonyl O atoms. In addition, the NH group forms an inter­molecular hydrogen bond to a symmetry equivalent of this carbonyl O atom, connecting the mol­ecules into centrosymmetric dimers. The structure also contains C—H⋯O inter­molecular inter­actions

Ethyl 3′-(2,4-dichloro­phen­yl)-5′-hydr­oxy-5′-methyl-4′,5′-dihydro­spiro­[fluorene-9,2′(3′H)-furan]-4′-carboxyl­ate

The furan ring and the five-membered fluorene unit in the title compound, C26H22Cl2O4, adopt envelope conformations. Inter­molecular C—H⋯O inter­actions between symmetry-related mol­ecules involving two C—H groups and an O atom as a bifurcated acceptor generate centrosymmetric hydrogen-bonded dimers with cyclic R 2 2(16) and R 2 2(8) ring motifs. A short C—H⋯Cl intramolecular contact occurs in the molecule