Tidiane Diop

Acetonyltriphenyl-phospho-nium nitrate.

Crystals of the title salt, C21H20OP+·NO3 −, are composed of acetonyltriphenylphosphonium cations and nitrate anions that mainly interact through electrostatic forces. The P atom in the cation has a slightly distorted tetrahedral environment, with C—P—C angles ranging from 104.79 (7) to 112.59 (6)°. The sum of O—N—O angles of the nitrate anion is 359.99°, reflecting its trigonal–planar character. C—H⋯O hydrogen bonds help to consolidate the crystal packing.

Poly[dibutyl-ammonium [nonamethylbis-(μ(3)-sulfato-κ(3)O:O':O'')tristannate(IV)]].

In the structure of the title coordination polymer, {(C8H20N)[Sn3(CH3)9(SO4)2]}n, each of the three SnIV atoms is coordinated in a trigonal–bipyramidal manner by three methyl groups in the equatorial plane and by two O atoms of SO4 2− 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 SO4 2− 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).

Bis(trimethyl-ammonium) tetra-chlorido-diphenyl-stannate(IV).

The title compound, [(CH3)3NH]2[Sn(C6H5)2Cl4], consists of [(CH3)3NH]+ cations and [SnPh2Cl4]2− anions in which the Sn atom, located on a centre of inversion, is bonded to four Cl atoms and two phenyl rings, giving an octahedral geometry with the phenyl rings in trans positions. In the crystal, the cations and the anions are connected by N—H⋯Cl hydrogen bonds and C—H⋯Cl interactions.

Tetra­butyl­ammonium butyl­tetra­chlorido­stannate(IV)

In the title compound, [N(C4H9)4][Sn(C4H9)Cl4], the SnIV atom of the stannate anion has a trigonal-bipyramidal coordination sphere by two Cl atoms and one butyl chain in the equatorial plane and by two Cl atoms in the apical positions. Two of the four butyl chains of the tetrabutylammonium cation are partially disordered, each with refined site occupancies of 0.691 (6):0.309 (6). Weak C—H⋯Cl hydrogen-bonding interactions help to consolidate the crystal packing, as well as a short Cl⋯Cl interaction of 3.295 (2) Å.

Poly[tetra­butyl­ammonium [chlorido­hexa­methyl-μ3-sulfato-distannate(IV)]]

In the structure of the title coordination polymer, {(C16H36N)[Sn2(CH3)6Cl(SO4)]}n, the two independent SnIV atoms are coordinated in a trigonal–bipyramidal manner by three methyl groups in the equatorial plane and in the axial positions by either two O atoms of bridging SO4 2− anions or by a Cl atom and one O atom of a bridging SO4 2− anion, respectively. The [Sn2(CH3)6Cl(SO4)]− anion forms an infinite zigzag chain parallel to the c axis. The cations are situated between these chains. Two of the four butyl groups of the cation are partially disordered over two sets of sites with site occupancies of 0.79 (2):0.21 (2) and 0.75 (2):0.25 (2), respectively. Weak C—H⋯O hydrogen-bonding interactions help to consolidate the crystal packing.

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 R 2 2(8) ring motifs. These dimers are bridged by two dicyclohexylaminium cations via pairs of N—H⋯O hydrogen bonds, giving R 4 4(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).

Bis(dimethyl­ammonium) tetra­chlorido­dimethyl­stannate(IV)

Regular crystals of the title compound, (C2H8N)2[Sn(CH3)2Cl4], were obtained by reacting SnMe2Cl2 with (CH3)2NH·HCl in ethanol in a 1:1 ratio. The Sn atom lies on a center of symmetry and is six-coordinated. It has a distorted octahedral SnC2Cl4 environment with the Cl atoms in cis positions. The Cl atoms are connected to dimethylammonium cations through N—H⋯Cl hydrogen bonds, forming an infinite chain extending parallel to [010].

catena-Poly[[triphenyl­tin(IV)]-μ-phenyl­phosphinato-κ2O:O′]

In the structure of the title coordination polymer, [Sn(C6H5)3(C6H6O2P)]n or [PhP(H)O2SnIV(Ph)3]n, the SnIV atom is five-coordinate, with the SnC3O2 framework in a trans trigonal–bipyramidal arrangement having the PhP(H)O2 − anions in apical positions. In the crystal, neighbouring polymer chains are linked via C—H⋯π interactions, forming a two-dimensional network lying parallel to (001).

Synthesis, spectroscopic characterization and crystal and molecular structures of phenylphosphonato SnR3 (R=Ph, Me) derivatives

Abstract Four new phenylphosphonato SnR3 (R=Ph, Me) derivatives have been synthesized and characterized by infrared and Mössbauer spectroscopy. The structure of catena-poly[PhPO3HSnMe3]n has been determined by single-crystal X-ray diffraction analysis. The SnIV atoms are five-coordinated in all compounds, with the SnC3O2 framework in a trans trigonal bipyramidal arrangement and the PhPO3H- anions being in axial positions. The molecular structure of [PhPO3HSnMe3]n is arranged as a one-dimensional coordination polymer in which planar SnMe3 groups are axially bridged by -O-P-O- linkages of the PhPO3H- ligand. Neighboring chains are linked via O-H∙∙∙O hydrogen bond interactions, generating a layered structure. In the R2NH2(PhPO3H)2SnR′3 (R=Cy, Bu; R′=Ph, Me), the SnPh3 or SnMe3 residue is axially coordinated by two monodentate PhPO3H-. The role of the dialkylammonium cation, R2NH2+, is crucial in the lattice building via a hydrogen bond network. These hydrogen bonds contribute to the crystal stability and compactness and result in a three-dimensional arrangement. The aqua complex PhPO3(SnPh3)2·2H2O has a discrete structure and the anion PhPO32- behaves as a bidentate ligand.

Et4N[NO3(SnClPh3)2(SnPh3NO3)]: a trinuclear organostannate complex and related derivatives

Abstract Four new di- and triorganonitrato stannate complexes and related derivatives have been synthesized and characterized by infrared and Mössbauer spectroscopy. The structure of Et4N[NO3(SnClPh3)2(SnPh3NO3)] (1) has been determined by single-crystal X-ray diffraction analysis. In the trinuclear organostannate complex, each SnIV atom is five-coordinated and adopts a trigonal-bipyramidal trans-OXSnC3 (X=O or Cl) geometry. The overall coordination environment of the SnIV atoms is trans-octahedral for 2 and 3 or cis-trigonal-bipyramidal for 4. In the related derivatives, the NO3- anions behave as monodentate ligands.