The ‘bare’ Sn2+ ion. X-Ray crystal structure and Mössbauer spectrum of (Sn2+)-(SbF6–)2(AsF3)2
Abstract
The 119Sn Mössbauer spectrum of the title compound shows the highest isomer shift, with no detectable quadrupole splitting, so far recorded for a tin(II) species and the crystal structure reveals a nine co-ordinate arrangement of fluorine atoms around the tin atom, with a distortion in geometry compatible with the presence of the lone pair of electrons.