116 research outputs found
N-Hydroxypyridine-4-carboxamide
The title compound, C6H6N2O2, is approximately planar with an r.m.s. deviation for the non-H atoms of 0.052 Å. In the crystal, a two-dimensional array in the bc plane is stabilized by O—H⋯N and N—H⋯O hydrogen bonds
catena-Poly[[trimethyltin(IV)]-μ-3,5-difluorobenzoato-κ2 O:O′]
In the title compound, [Sn(CH3)3(C7H3F2O2)]n, the central Sn atom is coordinated by two O atoms from the anion and three methyl C atoms in a polymeric fashion owing to the presence of bidentate bridging carboxylate ligands. The five-coordinate Sn atom exists in a distorted trigonal–bipyramidal geometry with the molecules connected by weak C—H⋯F intermoleclar interactions, forming supramolecular chains parallel to [010]
3-Phenyltetrahydrofuran-2,5-dione
In the title compound, C10H8O3, the dihedral angle between the approximately planar tetrahydrofuran-2,5-dione ring [maximum deviation 0.014 (3) Å] and the phenyl ring is 85.68 (8)°. Weak C—H⋯O=C intermolecular hydrogen-bonding contacts are observed in the structure
Di-μ3-oxido-bis(μ2-quinaldato-κ2 O:O)bis(quinaldato-κ2 N,O)tetrakis[di-n-butyltin(IV)]
The title tetranuclear SnIV complex, [Sn4(C4H9)8(C10H6NO2)4O2], is a cluster built up by inversion symmetry around the central Sn2O2 ring. The coordination geometries of the Sn atoms involved can be classified into two types: the five-coordinate Sn atoms of the central Sn2O2 core have a trigonal–bipyramidal geometry, with axial positions occupied by a μ3-O atom and a μ2-O atom belonging to the nonchelating quinaldate ligand. The peripheral Sn atoms are six-coordinate, with a distorted octahedral geometry. The methyl group of an n-butyl ligand is disordered over two sites, with occupancies of 0.643 (12) and 0.357 (12)
Bis(5-amino-2-chlorobenzoato-κO)triphenylantimony(V)
In the title compound, [Sb(C6H5)3(C7H5ClNO2)2], the Sb center has a distorted trigonal-bipyramidal geometry, with the O atoms of two carboxylate groups in axial positions and the C atoms of the phenyl groups in equatorial positions. Intramolecular C—H⋯O interactions occur. The molecules are connected by intermolecular N—H⋯O, N—H⋯N and C—H⋯O hydrogen-bonding interactions and C—H⋯π stacking interactions, forming a three-dimensional supramolecular framewor
3-Hydroxy-N′-[(E)-2-thienylmethylidene]-2-naphthohydrazide
The asymmetric unit of the title compound, C16H12N2O2S, contains three independent molecules. Intramolecular N—H⋯O hydrogen bonds in the three molecules lead to very similar conformations: the thiopene ring and naphthalene ring system in the three molecules form dihedral angles of 10.3 (2), 9.1 (2) and 9.3 (3)°. In the crystal structure, intermolecular O—H⋯O hydrogen bonds link the molecules into chains propagating in [031]
[5-Chloro-2-hydroxy-N′-(2-oxidobenzylidene)benzohydrazidato]dimethyltin(IV)
In the title compound, [Sn(CH3)2(C14H9ClN2O3)], the SnIV ion is coordinated by one N and two O atoms from the tridentate 5-chloro-2-hydroxy-N′-(2-oxidobenzylidene)benzohydrazidate (L) ligand and two methyl groups in a distorted trigonal–bipyramidal geometry. In the ligand, the hydroxy group is involved in an intramolecular O—H⋯N hydrogen bond and the two aromatic rings form a dihedral angle of 5.5 (1)°. In the crystal, weak intermolecular C—H⋯O hydrogen bonds and π–π interactions between the aromatic rings [centroid–centroid distance = 3.816 (3) Å] link the molecules into centrosymmetric dimers
Bis(2-amino-4-chlorobenzoato)triphenylantimony(V)
The title complex molecule, [Sb(C6H5)3(C7H5ClNO2)2], possesses crystallographically imposed C
2 symmetry. The Sb atom exhibits a trigonal-bipyramidal geometry with the axial positions occupied by the O atoms of two carboxylate groups and the equatorial positions by the C atoms of the phenyl groups. Intramolecular N—H⋯O and C—H⋯O hydrogen bonds occur
Bis(cyclohexylammonium) 2,2′-disulfanediyldibenzoate
In the title molecular salt, 2C6H14N+·C14H8O4S2
2−, the complete dianion is generated by crystallographic twofold symmetry and a twisted conformation is found [the C—S—S—C torsion angle is 87.13 (2)° and the dihedral angle between the rings is 83.4 (2)°]. In the crystal, intermolecular N—H⋯O hydrogen bonds link the cations and anions
Chlorido(2-chloronicotinato)triphenylantimony(V)
In the title complex, [Sb(C6H5)3(C6H3ClNO2)Cl], the Sb center has a close to ideal trigonal-bipyramidal geometry, with the phenyl ligands in equatorial positions and the chloride and a carboxylate O atom in axial positions. Weak C—H⋯O contacts generate dimeric units via crystallographic inversion centres
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