Author/Authors :
Mikhaylov، نويسنده , , Alexey A. and Mel’nik، نويسنده , , Elena A. and Churakov، نويسنده , , Andrei V. and Novotortsev، نويسنده , , Vladimir M. and Howard، نويسنده , , Judith A.K. and Sladkevich، نويسنده , , Sergey and Gun، نويسنده , , Jenny and Bharathi، نويسنده , , Subramanian and Lev، نويسنده , , Ovadia and Prikhodchenko، نويسنده , , Petr V.، نويسنده ,
Abstract :
Several alkali metal hydroxoantimonates, K2[Sb(O)(OH)5], Na[Sb(OH)6], Cs[Sb(OH)6] and Cs2[Sb2(μ-O)2(OH)8] were isolated from aqueous solutions and characterized by single crystal and powder X-ray diffraction studies and by FTIR and thermal analysis. Crystal structures involving [Sb(O)(OH)5]2− were never anticipated before, and this is also the first disclosure of a dinuclear antimonate [Sb2(μ-O)2(OH)8]2−. Aqueous antimonate solutions of different pH were studied by high resolution electrospray mass spectrometry showing pH indifferent spectra and predominance of the mono and dinuclear antimonate species at pH 4–10.
Keywords :
Antimonite , Antimony , Hydroxo complex , crystal structure , mass spectrometry
