6533b82efe1ef96bd1293051

RESEARCH PRODUCT

Studies on some antimony(III) complexes with tridentate schiff base ligands

Giuseppe AlonzoGiuseppe RuisiTerence C. GibbNuccio BertazziF. Di Bianca

subject

Tridentate ligandSchiff baseChemistryInfraredStereochemistrychemistry.chemical_elementInorganic ChemistryCrystallographychemistry.chemical_compoundAntimonyMössbauer spectroscopyMaterials ChemistryMass spectrumChelationPhysical and Theoretical Chemistry

description

Abstract The antimony(III) complexes FSb(Sab), ClSb(Sab) and ClSb(Sat) containing dianonic, potentially tridentate Schiff-base ligands with ONO(Sab 2− ) and ONS(Sat 2− ) donor atoms have been prepared and characterized. The mass spectra of these derivatives are reported. The occurrence of chelation by the tridentate ligand is inferred from the infrared data. The antimony-121 Mossbauer parameters at 4.2 K are reported. The magnitudes and the positive sign of eQV zz suggest a consistent p-character of the antimony lone-pair orbital. Observed differencies in the isomer shift and eQV zz values are discussed on the basis of the likely distribution of electron density around antimony.

https://doi.org/10.1016/s0020-1693(00)83749-4