Dibenzyl­aza­nium (oxalato-κ²O,O′)triphenyl­stannate(IV)

The title compound, (C₁₄H₁₆N)[Sn(C₆H₅)₃(C₂O₂)], was synthesised by allowing C₂O₄(Bz₂NH₂)₂ (Bz = benzyl) to react with SnPh₃Cl. The asymmetric unit is built up by four SnPh₃C₂O₄ anions and four Bz₂NH₂ cations which are related by a pseudo-inversion centre. Each Sn^IV cation is five-coordinated by the three phenyl groups and two O atoms belonging to the chelating oxalate ligand; the coordination geometry is that of a distorted trigonal bipyramid. Anions and cations are linked through N—H...O hydrogen bonds into a layer structure parallel to (001). Moreover, the anion–cation pairs are associated by two bifurcated N—H...O hydrogen bonds, generating pseudo-dimers. One of the phenyl groups of one anion is disordered over two sets of sites in a 0.69:0.31 ratio. The Flack parameter value of 0.44 (1) indicates racemic twinning.

Dimethyl­ammonium dichloridotriphenyl­stannate(IV)

The title salt, [(CH₃)₂NH₂][Sn(C₆H₅)₃Cl₂], was obtained as a by-product of the reaction between bis­(dimethyl­ammonium) oxalate and triphenyl­tin chloride. In the stannate anion, the trigonal–bipyramidal coordination environment of the Sn^IV atom is defined by the phenyl groups in equatorial and the Cl atoms in axial positions. The cations are connected to adjacent anions through N—H...Cl and C—H...Cl hydrogen-bonding inter­actions, leading to a chain motif parallel to [100].

Trimethyl­ammonium dichlorido­triphenyl­stannate(IV)

In the structure of the title monomeric coordination salt, (C₃H₁₀N)[Sn(C₆H₅)₃Cl₂], the Sn^IV atom is five coordinate, with the SnC₃Cl₂ entity in a trans trigonal–bipyramidal arrangement and the chlorine atoms in apical positions. In the crystal, the cations and anions are connected by N—H...Cl hydrogen bonds.

Dibutyl­ammonium bis­(hydrogen methylphosphonato-κO)triphenylstannate(IV)

The asymmetric unit of the title organotin salt, (C₈H₂₀N)[Sn(C₆H₅)₃(CH₄O₃P)₂], contains two dibutyl­ammonium cations and two stannate(IV) anions consisting each of two monodentately bonding methyl hydrogenphosphate groups attached to an Sn(C₆H₅) unit. The overall coordination environment of the two Sn^IV atoms is trigonal–bipyramidal defined by three phenyl C atoms in equatorial positions and two methyl hydrogenphosphate O atoms at the apical sites. In the crystal, the stannate(IV) anions are linked to each other via pairs of short O—H...O hydrogen bonds, leading to an infinite chain extending parallel to the b-axis direction. Neighbouring chains are linked by N—H...O hydrogen bonds involving the butyl­ammonium cations, giving a two-dimensional structure parallel to the ab plane. The crystal under investigation was found to be twinned by reticular merohedry with twin fractions of 0.5342 (7):0.4658 (7).

Poly[tetra­butyl­tetra­kis­(μ₂-hydrogen phenyl­phospho­nato)ditin(IV)]

In the title compound, [Sn₂(C₄H₉)₄(C₆H₆PO₃)₄]_n, the basic unit is a dimer containing two symmetry-related Sn^IV atoms bridged by two hydrogenphenylphosphonate anions. This fragment is located about an inversion center, and each Sn^IV atom is linked to two other hydrogenphenylphosphonate anions, giving a layered structure parallel to (010). The coordination geometry for the Sn^IV atoms is close to octa­hedral. The layers are connected via O—H...O hydrogen bonds, generating a three-dimensional network. One butyl group is disordered over two sets of sites, with occupancies of 0.49 (2) and 0.51 (2).

μ₂-Oxalato-bis­[triphen­yl(thio­urea-κS)tin(IV)]

The asymmetric unit of the binuclear title compound, [Sn₂(C₂O₄)(C₆H₅)₆(CH₄N₂S)₂], consists of one half of the organotin(IV) mol­ecule. The remainder is generated by a twofold rotation axis passing through the mid-point of the oxalate C—C bond. The Sn^IV atom exhibits a distorted trigonal–bipyramidal coordination environment with the phenyl groups in equatorial positions and the thio­urea and the monodentately bridging oxalate anion in axial positions. The mol­ecules are linked through N—H...O hydrogen bonds involving the amino group of the thio­urea ligand and the uncoordinating oxalate O atoms, forming layers parallel to (001). Weak C—H...O inter­actions are also present.

Poly[dibutyl­ammonium [nonamethylbis­(μ₃-sulfato-κ³O:O′:O′′)tristannate(IV)]]

In the structure of the title coordination polymer, {(C₈H₂₀N)[Sn₃(CH₃)₉(SO₄)₂]}_n, each of the three Sn^IV atoms is coordinated in a trigonal–bipyramidal manner by three methyl groups in the equatorial plane and by two O atoms of SO₄²⁻ anions in the axial positions. The μ₃-bridging mode of the sulfate anions leads to the formation of corrugated anionic layers parallel to (100). The uncoordinating O atom of one of the two SO₄²⁻ anions is N—H...O hydrogen-bonded to the dibutyl­ammonium cation inter­connecting the anionic sheets. The structure is partially disordered. The dibutyl ammonium ion is found on two positions with an occupancy ratio of 0.525 (10):0.475 (10), and one sulfate group with three connecting trimethyl stannyl groups is also positionally disordered over two sets of sites with an occupancy ratio of 0.725 (4):0.275 (4).

Dicyclo­hexyl­ammonium hydrogen phenyl­phospho­nate

In the title salt, [(C₆H₁₁)₂NH₂]⁺·[C₆H₅PO₂(OH)]⁻, the anion is monodeprotonated and acts as both a hydrogen-bond donor and acceptor. The anions are linked by pairs of O—H...O inter­actions, forming inversion dimers with R₂²(8) ring motifs. These dimers are bridged by two dicyclo­hexyl­aminium cations via pairs of N—H...O hydrogen bonds, giving R₄⁴(12) ring motifs, forming chains propagating along [010]. The chains are bridged by C—H...O inter­actions, forming a two-dimensional network lying parallel to (101).

Di-μ-hydroxido-bis­[dimeth­yl(thio­cyanato-κN)tin(IV)]

The Sn^IV atom in the centrosymmetric title complex, [Sn₂(CH₃)₄(NCS)₂(OH)₂], adopts a distorted trigonal–bipyramidal coordination environment defined by two methyl C atoms and one bridging hydroxide group in the equatorial plane while the other bridging hydroxide group and the N atom of the thio­cyanate anion are in the apical >positions. The dinuclear species are linked through O—H...S and C—H... S hydrogen-bonding inter­actions into a three-dimensional network.