Sb(III) fluoride complexes with DL-valine. crystal structure of molecular complex SbF3{(CH3)2CHCH(+NH3)COO–}

• DOI: 10.1007/pl00022085
• Publication Date: 2023-08-17T13:28:19Z
• Authors: L. A. Zemnukhova; R. L. Davidovich; A. A. Udovenko; E. V. Kovaleva
• Keywords: Antimonate; Hydrofluoric acid; Carboxylate

Preparative method in combination with X-ray diffraction and IR spectroscopy is used to study reaction of Sb(III) fluoride with α-aminoisovaleric acid (DL-valine) in an aqueous solution in the range of the molar ratios of components (0.25–2) : 1 in the presence of hydrofluoric acid. The molecular complex of Sb(III) fluoride with valine (1 : 1) of the composition SbF3{(CH3)2CHCH(+NH3)COO−}(I) and valinium tetrafluoro-antimonate(III) monohydrate {(CH3)2CHCH(+NH3)COOH}SbF4· H2O (II) are synthesized for the first time. Crystal structure was determined for the molecular complex I consisting of SbF3 groups and valine molecules united into polymer chains through bidentate bridging carboxylate groups of amino acid molecules.