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

Abstract

Four new phenylphosphonato SnR 3 (R = Ph, Me) derivatives have been synthesized and characterized by infrared and M ö ssbauer spectroscopy. The structure of catena-poly[PhPO 3 HSnMe 3 ] n has been determined by single-crystal X-ray diffraction analysis. The Sn IV atoms are five-coordinated in all compounds, with the SnC 3 O 2 framework in a trans trigonal bipyramidal arrangement and the PhPO 3 H -anions being in axial positions. The molecular structure of [PhPO 3 HSnMe 3 ] n is arranged as a one-dimensional coordination polymer in which planar SnMe 3 groups are axially bridged by -O-P-O-linkages of the PhPO 3 H -ligand. Neighboring chains are linked via O-H … O hydrogen bond interactions, generating a layered structure.In the R 2 NH 2 (PhPO 3 H) 2 SnR′ 3 (R = Cy, Bu; R′ = Ph, Me), the SnPh 3 or SnMe 3 residue is axially coordinated by two monodentate PhPO 3 H -. The role of the dialkylammonium cation, R 2 NH 2 + , 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 PhPO 3 (SnPh 3 ) 2 . 2H 2 O has a discrete structure and the anion PhPO 3 2-behaves as a bidentate ligand.

[n-Bu2 NH2]3[SnPh3(SeO4)2]: the first triorganotin(IV) complex with terminally coordinated selenato ligands

“…The apical positions are occupied by two oxygen atoms of two monodentate SeO 4 2-terminally coordinated [O1-Sn1 2.155(12) and O5-Sn1 2.181(11) Å]. The Sn-O distances are slightly shorter than those already reported for didentate or tridentate selenato adducts of tin(IV) (Diop et al, 2001. A comparison of the Sn-O(Se) and Se-O(Sn) bond lengths (Å) and the Sn-O-Se angles (deg) with related compound is given in τ, which represents the relative amount of trigonality [for a square pyramid, τ = 0; for a trigonal pyramid, τ = 1, with τ = (β-α)/60°) and where α and β are the two largest angles] .…”

“…For many years, our group has been involved in the study of the reactivity of organotin(IV) derivatives with oxyanions (Diallo et al, 2009;Qamar-Kane and Diop, 2010;Gueye et al, 2011;Sarr et al, 2013;Sow et al, 2013). In the course of our ongoing studies on the structural elucidation of new selenato and selenito adducts of tin(IV) (Diassé- Sarr et al, 1997;Diop et al, 2001Diop et al, , 2007Diallo et al, 2007), we report herein the result of the reaction involving n-Bu 2 NH, SeO 4 H 2 , and SnPh 3 OH and leading to the crystallization of the new organotin salt, [n-Bu 2 NH 2 ] 3 [SnPh 3 (SeO 4 ) 2 ] (1), in which both selenato ligands are terminally coordinated.…”

Triorganotin Phosphonates Polymeric Chains - Synthesis, Infrared, Mossbauer and Single Crystal Characterization:the First Organotin(iv) Ph2- Bridged.

“…-Molecular structure of 1showing the trigonal bipyramidal polyhedron at tin atoms. Ellipsoids are drawn at 50% probability.The Sn-C distances are in the range of those found in tbp SnMe 3 moieties(Diop et al, 2013a(Diop et al, , 2012b(Diop et al, , 2011a. The Sn1-O4 bond of 2.416 (2) Å is longer, weaker than the Sn1-O1 one of 2.1313(19) Å: these values are in a typical range of Sn-O phosphonate (Diop et al, 2013a, 2012a, 2012b) and Sn-O water (Diop et al, 2015), respectively.…”

“…In some of these structures, the hydrogenphosphonate anion behaves as multidirectional synthons. Contributing to widen phosphonate family compounds, the Dakar group has already reported the spectroscopic (Infrared, Mössbauer and NMR) studies of some RPO 3 (SnPh 3 ) 2 (R = H or CH 3 ) (Diop et al, 1999), the crystal characterization of dibutylammonium bis(hydrogen methylphosphonato-κO)triphenylstannate(IV) (Diop et al, 2012a) as well as numerous phenylphosphonato triphenyltin(IV) crystalline structures which, through hydrogen bonding interactions, exhibit various structures that give rise to supramolecular diverse topologies (Diop et al, 2013a(Diop et al, , 2012b(Diop et al, , 2011a(Diop et al, , 2011b. To the best of our knowledge (CSD version 5.40), very few, only three tin(IV) methylphosphonate and five tin(IV) hydrogenphosphonate containing crystalline compoundsare known (Diop et al, 2012a;Ribot et al, 2001;Adair et al, 1998;Chandrasekharet al, 2003Chandrasekharet al, , 2005Mairychova et al, 2014 (Mairychova et al, 2014) or an hexameric cage structure in a double O-capped cluster with tri-O-coordinating ligands (Chandrasekharet al, 2003(Chandrasekharet al, , 2005.…”

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

“…Reports on structure determinations or spectroscopic characterizations of triphenyltin(IV) derivatives with monoand polybasic oxyanions (XO m n -; X = Cr, Se, S, As; m = 3, 4; n = 1, 2, 3) show that the oxyanions behave mainly as polydentate ligands involving a one-dimensional polymeric, bi-or tridimensional network structure (Molloy et al, 1989;Diop et al, 2002;Diass é -Sarr et al, 2004;Fall et al, 2010;Boye et al, 2012). Some nitrato derivatives (Jurkschat et al, 2003a;Garc í a-Cuesta et al, 2004;Seward et al, 2007;Anjaneyulu et al, 2010;Hakimi et al, 2012) (Sall et al, 1995;Diallo et al, 2009;Gueye et al, 2011;Diop et al, 2013). In this paper, we report on the reactions between tetraethylammonium nitrate (Et 4 NNO 3 ) or dicyclohexylammonium nitrate (Cy 2 NH 2 NO 3 ) and mixing triphenyltin(IV) chloride (SnPh 3 Cl) or SnR 2 Cl 2 (R = Ph, Bu), which have yielded a trinuclear organostannate complex and related derivatives.…”