6533b832fe1ef96bd129a566
RESEARCH PRODUCT
Tin(IV) complexes with O-ethyl(N-ethyl-N,N-dimethylammoniomethyl)phosphonate
A. A. PrischenkoEvgeni V. AvtomonovMikhail V. LivantsovA PelleritoN. S. YashinaValery S. PetrosyanE. V. GrigorievAntonio GianguzzaLorenzo PelleritoJörg Lorberthsubject
ChemistryStereochemistryLigandOrganic ChemistryHexacoordinatechemistry.chemical_elementBridging ligandBiochemistryMedicinal chemistryPhosphonateInorganic Chemistrychemistry.chemical_compoundTrigonal bipyramidal molecular geometryOctahedronMaterials ChemistryMoleculePhysical and Theoretical ChemistryTindescription
Abstract O,O-Diethyl-(N,N-dimethylaminomethyl)phosphonate undergoes ethyl migration leading to O-ethyl-(N-ethyl-N,N-dimethylammoniomethyl)phosphonate (L). Several new complexes of tin(IV) and organotin(IV) chlorides with the title ligand have been synthesized. The stoichiometry of the obtained complexes is as follows: (R3SnCl)2 · L (R=Me, Bu, Ph), R2SnCl2 · L (R=Me, Bu, Ph), RSnCl3 L (R=Me, Ph) and SnCl4 · L. All the complexes have been studied in solution by means of 1H-, 13C-, 31P- and 119Sn-NMR spectroscopy. Their solid state structures have been investigated by means of Mossbauer spectroscopy and the molecular structure of the complex (Ph3SnCl)2 · L has been determined by X-ray crystallography. The ligand behaves as a bidentate ligand, bridging two pentacoordinate trigonal bipyramidal organotin moieties through an O–P–O fragment. The spectroscopic data for R2SnCl2 · L, RSnCl3 · L and SnCl4 · L suggest hexacoordinate structures with an octahedral tin environment, the complexes probably being polymeric according to the bridging ligand behavior.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-03-01 |