Hexaaquabis(dimethyl sulfoxide)yttrium(III) trichloride

The title compound, [Y(C2H6OS)(2)(H2O)(6)]Cl-3, contains the cation [Y(H2O)(6){(CH3)(2)SO}(2)](3+) with a distorted square antiprismatic geometry of the eight coordinated O atoms. The six water molecules are coordinated with an average Y-O distance of 2.38 (2) Angstrom, ranging from 2.360 (3) to 2.404 (3) Angstrom. Each water molecule forms two hydrogen bonds to the chloride anions with O-Cl distances ranging from 3.068 (4) to 3.422 (4) Angstrom. The two dimethyl sulfoxide ligands, situated in the cis position with the O-Y-O angle equal to 83.22 (11)degrees, have Y-O distances of 2.269 (3) and 2.278 (3) Angstrom.