Syntheses and Structures of Complex Diorganoantimony(V) Cations of the Type [R₂SbL₃]³⁺

Abstract

A series of hitherto unreported solid salts of penta‐coordinated cations of the general formula [R₂SbL₃]³⁺, where R = C₆H₅, p‐ClC₆H₄, p‐CH₃C₆H₄, p‐(CH₃O)C₆H₄; L = DMSO, Ph₃AsO, Py‐N‐oxide, DMF, α‐, β‐, and γ‐picoline have been prepared in the presence of tetraphenyl‐ and tetrafluoro‐borate counterions. The complexes have been formulated and characterized on the basis of elemental analyses, molar conductances, molecular weights, and solid state IR and solution state ¹H NMR spectral data. The physico‐chemical data are consistent with five‐coordinate antimony complexes.

Keywords:

• Diorganoantimony(V) cations
• Monodentate ligands
• Trigonal bipyramidal structure

Acknowledgment

The authors are thankful to the Head of the Department of Lucknow University, Lucknow, India, for providing the necessary laboratory facilities, and the Director, Regional Scientific Instrumentation Centre, Lucknow, for obtaining spectral and microanalytical data.