catena-Poly[[[pyridinecopper(II)]-(μ-2-oxidonaphthalene-1-carbaldehyde pico­linoylhydrazonato)-[pyridinecopper(II)]-μ-sulfato] diethyl ether hemisolvate]

The title compound, {[Cu2(C17H11N3O)(SO4)(C5H5N)2]·0.5C4H10O}n, was syn­thesized by the reaction of 2-hydr­oxy-1-naphthyl­aldehyde-2-pyridine­carboxyl­hydrazone with copper sulfonate. A one-dimensional polymer was obtained via self-assembly. Each Cu ion is located in a distorted square-pyramidal coordination environment, with one Cu ion coordinated by two N and three O atoms, while the other links to two O and three N atoms. In the crystal, weak inter­molecular C—H⋯O inter­actions connect the chains into a two-dimensional network

catena-Poly[[[μ-cyanido-1:2κ2 C:N-tricyanido-1κ3 C-bis(ethylenediamine)-2κ4 N,N′-copper(II)iron(II)]-μ-cyanido-κ2 C:N-[bis(ethylenediamine-κ2 N,N′)copper(II)]-μ-cyanido-κ2 N:C] 4.5-hy­drate]

The asymmetric unit of the title compound, {[Cu2Fe(CN)6(C2H8N2)4]·4.5H2O}n, consists of two [Cu(C2H8N2)2]2+ cations, one [Fe(CN)6]4− anion, four water mol­ecules and a half water mol­ecule that lies on a twofold rotation axis. The FeII atom is coordinated by six C atoms from three terminal and three doubly bridging CN− ligands. The bridging CN− ligands connect the anion to a five-coordinate [Cu(C2H8N2)2]2+ cation and to two symmetry-related six-coordinate [Cu(C2H8N2)2]2+ cations, forming a one-dimensional polymer in the ab plane. Inter­molecular hydrogen bonds connect the polymer units into a three-dimensional network

Bis(μ-chloroacetato-κ2 O:O′)bis(chloro­acetato-κO)di-μ3-oxido-tetrakis[dibenzyl­tin(IV)]

The title tetra­nuclear complex mol­ecule, [Sn4(C7H7)8(C2H2ClO2)4O2], has crystallographically imposed inversion symmetry. Each Sn atom has a distorted trigonal–bipyramidal geometry, with the equatorial plane formed by an oxido O atom and two C atoms of two benzyl anions. The configuration of the complex is stabilized by a pair of C—H⋯O hydrogen bonds. In the crystal, complex mol­ecules are linked into zigzag chains along [110] by C—H⋯O hydrogen bonds

catena-Poly[[trimethyl­tin(IV)]-μ-quinaldato]

The title compound, [Sn(CH3)3(C10H6NO2)]n, forms an extended one-dimensional chain structure. There are two independent SnIV ions, both of which are in slightly distorted trigonal-bipyramidal coordination environments with two symmetry-related O atoms in the axial sites. In each case, the SnIV ion and one of the three equatorial C atoms lie on a crystallographic twofold axis

Di-μ-methanolato-κ4 O:O-bis[tri­chlorido(dimethyl­formamide-κO)tin(IV)]

The title compound, [Sn2(CH3O)2Cl6(C3H7NO)2], contains two hexa­coordinated SnIV atoms symmetrically bridged by two deprotonated methanol ligands, with an inversion center in the middle of the planar Sn2O2 ring. The other sites of the distorted octa­hedral coordination geometry of the SnIV atom are occupied by three Cl atoms and one O atom from a dimethyl­formamide mol­ecule. The complex mol­ecules are connected by weak C—H⋯Cl hydrogen bonds into a two-dimensional supra­molecular network parallel to (10)

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]

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

Dimethyl­bis(3-methylsulfanyl-1,2,4-thia­diazole-5-thiol­ato)tin(IV)

In the title compound, [Sn(CH3)2(C3H3N2S3)2], the SnIV atom is coordinated within a C2N2S2 donor set that defines a skew-trapezoidal bipyramidal geometry in which the methyl groups lie over the weakly coordinated N atoms. Two independent mol­ecules comprise the asymmetric unit, each of which lies on a mirror plane that passes through the C2Sn unit