Yanling Qiao

{4-Chloro-N′-[(2-oxidonaphthalen-1-yl-κO)methyl­idene]benzohydrazidato-κ2N′,O}di­methyl­tin(IV)

In the title complex, [Sn(CH3)2(C18H11ClN2O2)], the SnIV ion is coordinated by two O atoms and an N atom from a 4-chloro-N′-[(2-oxidonaphthalen-1-yl)methylidene]benzohydrazidate ligand and two C atoms from two methyl ligands in a distorted trigonal–bipyramidal geometry [Sn—O = 2.092 (3) and 2.144 (3) Å; Sn—N = 2.160 (4) Å]. The dihedral angle between the naphthalene ring system and the benzene ring is 8.6 (2)°. In the crystal, adjacent molecules are linked by weak C—H⋯O hydrogen bonds, forming a chain along the b-axis direction.

{1-[(2-Oxidonaphthalen-1-yl)methylidene]thiosemicarbazidato-κN,O,S}diphenyl-tin(IV).

The asymmetric unit of the title compound, [Sn(C6H5)2(C12H9N3OS)], contains two independent molecules with almost identical configurations. In each molecule, the SnIV atom is coordinated by O, N and S atoms from a (2-oxido-1-naphthaldehyde)thiosemicarbazonato ligand and two C atoms from phenyl rings in a distorted trigonal–bipyramidal geometry. Weak intermolecular N—H⋯O and N—H⋯S hydrogen bonds link four molecules into a centrosymmetric tetramer. The crystal packing exhibits short intermolecular S⋯S contacts of 3.335 (3) Å.

Di-n-but­yl[4-hy­droxy-N′-(3-meth­oxy-2-oxido­benzyl­idene-κO2)benzo­hydrazidato-κ2N,O]tin(IV)

In the title compound, [Sn(C4H9)2(C15H12N2O4)], the SnIV atom is coordinated by the N, O and O′ atoms from the tridentate Schiff base dianion in an overall cis-C2SnNO2 trigonal–bipyramidal geometry. Adjacent molecules are linked by O—H⋯O hydrogen bonds, forming a chain running along [001].

trans-Tris(4-bromo-phen-yl)dichlorido-antimony(V).

The SbV atom in the title compound, [SbCl2(C6H4Br)3], has an almost regular trigonal–bipyramidal geometry with the equatorial plane made up of three C atoms of the bromophenyl groups and the axial positions occupied by two Cl− ions in a trans configuration. In the crystal, C—H⋯Br hydrogen bonds link the molecules into zigzag chains along the b-axis direction. Pairs of C—H⋯Cl hydrogen bonds further link molecules into cyclic dimers with R 2 2(10) ring motifs, generating a three-dimensional network.

[2-(4-Chloro-phen-yl)-1,3-selenazol-4-yl]methanol.

In the title compound, C10H8ClNOSe, the dihedral angle between benzene and selenazole rings is 11.4 (3)° and the hydroxymethyl group is bent from the selenazole ring, making a dihedral angle of 63.8 (3)°. In the crystal, molecules are linked into inversion dimers by pairs of O—H⋯N hydrogen bonds. Roof-tile-like stacking of the molecules along [010] [b = 4.5707 (4) Å] is observed, with the benzene and selenazole rings separated by a face-to-face distance of 3.57 Å and a mutual slippage of 2.85 Å.

(E)-4-[2-(2-Hy-droxy-benzo-yl)-hydra-zin-ylidene]penta-noic acid.

The title molecule, C12H14N2O4, adopts a trans configuration with respect to the C=N double bond. The amino group is involved in an intramolecular N—H⋯O hydrogen bond. In the crystal structure, intermolecular O—H⋯O hydrogen bonds link the molecules into doubled sheets parallel to the (101) plane.

2,2'-[Pyridine-2,6-diylbis(carbonyl-hydrazono)]dipropanoic acid N,N-dimethyl-formamide disolvate.

The complete molecule of the title compound, C13H13N5O6·2C3H7NO, is generated by crystallographic twofold rotation with an N and a C atom lying on the axis. The structure is stabilized by intermolecular O—H⋯O hydrogen bonds.

catena-Poly[[triphenyl­tin(IV)]-μ-2-(2-picolinoylhydrazono)propanoato-κ2O1:O2]

In the title polymeric coordination compound, [Sn(C6H5)3(C9H8N3O3)]n, the SnIV atom is in a distorted trigonal-bipyramidal geometry, being coordinated by two O atoms from two 2-(2-picolinoylhydrazono)propanoate ligands and three phenyl groups. Adjacent Sn atoms are bridged by the 2-(2-picolinoylhydrazono)propanoate ligand through one carbonyl O atom and one carboxylate O atom, forming a chain structure propagating parallel to [100]. An intramolecular N—H⋯O hydrogen bond is observed.

[4-Chloro-N′-(3-meth­oxy-2-oxidobenzyl­idene)benzohydrazidato]dimethyl­tin(IV)

In the title molecule, [Sn(CH3)2(C15H11ClN2O3)], the two benzene rings form a dihedral angle of 6.37 (2)°. The Sn atom is coordinated by one N [Sn—N = 2.187 (3) Å], two O [Sn—O = 2.123 (3) and 2.174 (3) Å] and two C [Sn—C = 2.096 (4) and 2.101 (4) Å] atoms in a distorted trigonal-bipyramidal geometry. The crystal packing exhibits weak intermolecular C—H⋯O hydrogen bonds, which link the molecules into centrosymmetric dimers with an Sn⋯Sn separation of 4.330 (6) Å, and π–π interactions [centroid–centroid distance of 3.690 (5) Å between the benzene rings of neighbouring molecules].

[4‐Chloro‐N′‐(3‐methoxy‐2‐oxidobenzylidene)benzohydrazidato]diphenyltin(IV)

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