6533b7ddfe1ef96bd127511e

RESEARCH PRODUCT

Organotin(IV) azido and mixed azidothiocyanato complex anions; A Mössbauer and vibrational spectroscopic study

C. TomarchioNuccio BertazziRenato BarbieriRolfe H. Herber

subject

TetramethylammoniumStereochemistryOrganic ChemistrySolid-stateConductanceBiochemistryInorganic ChemistryTrigonal bipyramidal molecular geometrychemistry.chemical_compoundCrystallographyOctahedronchemistryMössbauer spectroscopyMaterials ChemistryPhysical and Theoretical Chemistry

description

Abstract Tetraphenylarsonium and tetramethylammonium salts of the complex anions Ph 3 Sn(N 3 ) − 2 , Ph 3 Sn(N 3 )(NCS) − , Me 2 Sn(N 3 ) 2− 4 and Ph 2 Sn(N 3 ) 2 (NCS) 2− 2 have been synthesized, and the solid state configuration of the complex anions has been studied by Mossbauer and vibrational spectroscopies. Trigonal bipyramidal structures are advanced for the Ph 3 Sn IV derivatives, with equatorial SnC 3 and apical pseudohalide ligands, while the R 2 Sn IV compounds are assumed to be trans -octahedral species. The NCS − ligands are observed to be N-bonded to Sn IV . Conductance and PMR (for the Me 2 Sn IV compound) data suggest the presence of the complex anions also in solution phases.

https://doi.org/10.1016/s0022-328x(00)88772-0