Di-μ-chlorido-bis­[aqua­chloridodimethyl­tin(IV)]–1,4,7,10,13-penta­oxacyclo­penta­decane (1/1)

The Sn, Cl and water O atoms of the title compound, [Sn2(CH3)4Cl4(H2O)2]·C10H20O5, lie on a special position of 2 site symmetry. The SnIV atom shows cis-C2SnCl2O trigonal–bipyramidal coordination [C—Sn—C = 157.0 (1)°]; however, two [Me2SnCl2(H2O)] units are linked by a tin–chlorine bridge [Sn←Cl = 3.247 (1) Å] across a center of inversion, generating a dinuclear species, so that the geometry is better regarded as a mer-C2SnCl3O octa­hedron. The crown ether inter­acts through O—H⋯O hydrogen with the metal atom through the coordinated water mol­ecules in an outer-sphere manner, generating a hydrogen-bonded chain running along [101]. The 15-crown-5 mol­ecule is disordered over the 2/m site

Di-μ2-methano­lato-bis­(μ-4-methyl-5-sulfanyl­idene-4,5-dihydro-1H-1,2,4-triazolido-κ2 N 1:N 2)di-μ3-oxido-tetra­kis­[dimethyl­tin(IV)]

The title distannoxane, [Sn4(CH3)8(C3H4N3S)2(CH3O)2O2], lies about a center of inversion; the tetra­nuclear mol­ecule features a three-rung-staircase Sn4O4 core in which the two crystallographically independent SnIV atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn—N = 2.239 (2) Å] compared with the neutral N atom that binds to the central Sn atom [Sn← N = 2.757 (3) Å]. The oxide O atom is three-coordinate whereas the methano­late O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C3SnNO trigonal–bipyramidal environment, whereas the central Sn atom is six-coordinate in a C2SnNO3 skew-trapezoidal–bipyramidal geometry

[(Nitrato-κ2 O,O′)(nitrito-κ2 O,O′)(0.25/1.75)]bis­(1,10-phenanthroline-κ2 N,N′)cadmium(II)

The reaction of cadmium nitrate and sodium nitrite in the presence of 1,10-phenanthroline yields the mixed nitrate–nitrite title complex, [Cd(NO2)1.75(NO3)0.25(C12H8N2)2]. The metal ion is bis-chelated by two N-heterocycles as well as by the nitrate/nitrite ions in a distorted dodeca­hedral CdN4O4 coordination environment. One nitrite group is ordered; the other is disordered with respect to a nitrate group (ratio 0.75:0.25) concerning the O atom that is not involved in bonding to the metal ion

10-Hy­droxy­benzo[h]quinolin-1-ium tetra­chlorido(pyridine-2-carboxyl­ato-κ2 N,O)stannate(IV) methanol monosolvate

The reaction of 4-(dimethyl­amino)­pyridine, picolinic acid and stannic chloride yields the title monosolvated salt, (C13H10NO)[SnCl4(C6H4NO2)]·CH3OH. The SnIV atom is N,O-chelated by the picolinate ion in a cis-SnNOCl4 octa­hedral geometry. The cation is linked to the methanol solvent mol­ecule by an O—H⋯O hydrogen bond; the solvent mol­ecule itself is a hydrogen-bond donor to the uncoordinating carboxyl­ate O atom of the anion. The cations and anions are linked by weak N—H⋯Cl inter­actions, forming a chain running along the b axis

[4-(Dimethyl­amino)­pyridine-κN 1]tri­methyl(thio­cyanato-κN)tin(IV)

In the title monomeric trimethyl­tin(IV) isothio­cyanate–4,4-dimethyl­pyridine adduct, [Sn(CH3)3(NCS)(C7H10N2)], the SnIV atom shows a trans-C3SnN2 trigonal bipyramidal coordination. The SnIV atom lies out of the equatorial plane by 0.033 (4) Å in the direction of the donor N atom of the N-heterocycle. The crystal studied was a non-merohedral twin with a minor component of 48.8 (2)%

4-(Dimethyl­amino)­pyridinium tetra­chlorido(pyridine-2-carboxyl­ato-κ2 N,O)stannate(IV)

The reaction of 4-(dimethyl­amino)­pyridine, picolinic acid and stannic chloride yields the title salt, (C7H11N2)[SnCl4(C6H4NO2)], in which the SnIV atom is N,O-chelated by the picolinate ion in a cis-SnNOCl4 octa­hedral geometry. The cation is linked to the anion by an N—H⋯O hydrogen bond

Di-n-butyl­bis­(thio­cyanato-κN)(1,10-phenanthroline-κ2 N,N′)tin(IV)

In the asymmetric unit of the title compound, [Sn(C4H9)2(NCS)2(C12H8N2)], there are two independent mol­ecules, both lying on a twofold rotation axis. The axis passes through the mid-point of the 1,10 and 5,6 bonds of the N-heterocycle and through the Sn atom. The Sn atoms show a slightly distorted SnC2N4 octa­hedral coordination

Dimeth­yl(4′-pyridyl-2,2′:6′,2′′-terpyridine-κ3 N 1,N 1′,N 1′′)bis(thio­cyanato-κN)tin(IV)

The Sn atom in the title compound, [Sn(CH3)2(NCS)2(C20H14N4)], is N,N′,N′′-chelated by the terpyridine part of the N-heterocycle. The Sn atom exists in a trans-C2SnN5 penta­gonal–bipyramidal geometry [C—Sn—C = 173.66 (8)°] with the methyl groups in axial and the N atoms in equatorial positions

8-Hy­droxy-2-methyl­quinolinium tetra­chlorido(pyridine-2-carboxyl­ato-κ2 N,O)stannate(IV)

In the reaction of pyridine-2-carb­oxy­lic acid and stannic chloride in the presence of 2-methyl-8-hy­droxy­quinoline, the 2-methyl-8-hy­droxy­quinoline is protonated, yielding the title salt, (C10H10NO)[SnCl4(C6H4NO2)]. The SnIV atom in the anion is N,O-chelated by a pyridine-2-carboxyl­ate in a cis-SnNOCl4 octa­hedral geometry. The cation is linked to the anion by an O—H⋯O hydrogen bond

Di-μ2-methano­lato-bis­(μ-4-methyl-5-sulfanyl­idene-4,5-dihydro-1H-1,2,4-triazolido-κ2 N 1:N 2)di-μ3-oxido-tetra­kis­[dibutyltin(IV)]

The asymmetric unit of the title distannoxane, [Sn4(C4H9)8(C3H4N3S)2(CH3O)2O2], contains two mol­ecules, each of which lies about an individual center of inversion. The tetra­nuclear mol­ecule features a three-rung-staircase Sn4O4 core in which two independent SnIV atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn—N = 2.262 (3), 2.254 (3) Å] compared with the neutral N atom that binds to the central Sn atom[SnN = 2.617 (4); 2.830 (3) Å]. The oxide O atom is three-coordinate whereas the methano­late O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C3SnNO trigonal–bipyramidal environment, whereas the central Sn atom is six-coordinate in a C2SnNO3 skew-trapezoidal–bipyramidal geometry