Liyuan Wen

N′-[(E)-3-Pyridylmethyl­idene]benzo­hydrazide

The title compound, C13H11N3O, was prepared by the reaction of benzohydrazide and nicotinaldehyde. The dihedral angle between the planes of the two aromatic rings is 47.78 (9)°. The crystal structure is stabilized by intermolecular N—H⋯N hydrogen-bonding interactions.

Bis(2-hydroxy­benzaldehyde oximato-κO)triphenyl­anti­mony(V)

The molecule of the title compound, [Sb(C6H5)3(C7H6NO2)2], is located on a twofold axis defined by the metal center and two C atoms of a coordinated phenyl group. The Sb center has a slightly distorted trigonal-bipyramidal geometry, with the axial positions occupied by the O atoms of symmetry-related 2-hydroxybenzaldehyde oximate ligands. An intramolecular O—H⋯N interaction is present. The crystal structure is stabilized by C—H⋯O interactions.

Dichloridoocta­kis(2-chloro­benz­yl)di-μ2-hydroxido-di-μ3-oxido-tetra­tin(IV)

The title tetranuclear SnIV compound, [Sn4(C7H6Cl)8Cl2O2(OH)2], has site symmetry . Two O2− and two OH− anions bridge four SnIV cations to form the tetranuclear compound. The two independent SnIV cations assume SnO3C2 and SnO2C2Cl distorted trigonal-bipyramidal coordination geometries. Intramolecular O—H⋯Cl hydrogen bonding is present in the structure. One Cl atom of a chlorobenzyl ligand is disordered over two sites with an occupancy ratio of 0.693 (2):0.307 (2).

Octa­butyl­bis{(E)-2-[4-(2-hydroxy­benzyl­ideneamino)phen­yl]acetato}di-μ2-methoxo-di-μ3-oxido-tetra­tin(IV)

The title compound, [Sn4(C4H9)8(C15H12NO3)2(CH3O)2O2], is a centrosymmetric dimer and displays a ladder type structural motif. There are four SnIV centres which can be divided into two sorts, viz. two endocyclic and two exocyclic. The endo- and exocyclic SnIV centres are linked by bidentate deprotonated methanol and μ3-O atoms. Each exocyclic SnIV centre is also coordinated by a monodentate 2-[4-(2-hydroxybenzylideneamino)phenyl]acetate ligand. Parts of the butyl groups were found to be disordered over two sets of sites.

catena-Poly[[trimethyl­tin(IV)]-μ-2-(3-thien­yl)acetato]

The title compound, [Sn(CH3)3(C6H5O2S)]n, forms an infinite chain structure parallel to [100]. There are two molecules of the complex in the asymmetric unit. The geometry of the Sn atoms in both molecules is distorted trigonal-bipyramidal. The S and C atoms of the thiophene rings in both molecules are disordered over two sites with site-occupancy factors 0.799 (9)/0.201 (9) and 0.618 (7)/0.382 (7), respectively.

catena-Poly[[trimethyl­tin(IV)]-μ-2-(2-chloro­phenyl)­acetato]

In the title polymeric coordination compound, [Sn(CH3)3(C8H6ClO2)]n, the Sn atoms exhibit a distorted trigonal-bipyramidal geometry with the carboxylate O atoms of the 2-chlorophenylacetato ligands in axial positions and with the equatorial sites occupied by the three methyl groups. Adjacent Sn atoms are bridged by coordination to the two O atoms of each 2-chlorophenylacetato ligand, forming a chain structure.

[2-Oxido-1-naphthaldehyde (2-hydroxy-benzo-yl)hydrazonato]diphenyl-tin(IV).

In the title compound, [Sn(C6H5)2(C18H12N2O3)], the SnIV atom has a distorted trigonal-bipyramidal geometry. The Schiff base molecule is coordinated to the SnIV atom in a tridentate fashion via the azomethine N atom, the hydroxy O atom and the carbonyl O atom. The complex involves an intramolecular O—H⋯N hydrogen bond.

3-[(3-Oxo-1,3-dihydro-isobenzofuran-1-yl)amino]benzoic acid.

In the title compound, C15H11NO4, the dihedral angle formed by the benzene ring and isobenzofuran ring system is 67.82 (5) Å. The crystal structure is stabilized by intermolecular O—H⋯O and N—H⋯O hydrogen-bonding interactions.

Tris(O-cyclo-hexyl dithio-carbonato-κS)anti-mony(III).

In the molecule of the title compound, [Sb(C7H11OS2)3], the antimony(III) is coordinated by the S atoms of three O-alkyl xanthate groups acting as monodentate ligands, forming a distorted trigonal-pyramidal coordination.

3,3'-Oxybi[isobenzofuran-1(3H)-one].

The title compound, C16H10O5, consists of two isobenzofuran-1(3H)-one moieties which are linked by a bridging O atom. The two halves of the molecule display approximate non-crystallographic mirror symmetry. The dihedral angle between the two isobenzofuran-1(3H)-one ring systems is 53.18 (6) Å. Two chiral carbon centres are observed in the compound, but their absolute configurations could not be determined. In the crystal structure, intermolecular C—H⋯O hydrogen bonds link molecules into zigzag chains along c. Additional C—H⋯O interactions connect adjacent chains.