Tetra-aqua-bis-(thio-urea-?S)cadmium(II) triaqua-tris(thio-urea-?S)cadmium(II) disulfate.

ABSTRACT: The title compound, [Cd(CH(4)N(2)S)(2)(H(2)O)(4)][Cd(CH(4)N(2)S)(3)(H(2)O)(3)](SO(4))(2), contains two mol-ecules of each of the Cd complexes and four sulfate ions in the asymmetric unit: all the Cd atoms exhibit distorted octa-hedral geometries. The Cd-S and Cd-O bond lengths around the Cd atoms in the bis-(thio-urea) cations are in the ranges 2.580?(4)-2.599?(4) and 2.323?(8)-2.421?(9)?Å, respectively, and the S atoms are in a cis orientation. In the tris-(thio-urea) cations, the corresponding bond lengths around the Cd atoms are slightly longer and are in the ranges 2.559?(4)-2.706?(3) and 2.303?(7)-2.480?(10)?Å, respectively, and the S atoms are in a fac disposition. The crystal structure features numerous N-H?O, N-H?N, O-H?O and O-H?N hydrogen bonds. Two O atoms of a sulfate anion were found to be disordered over two orientations in a 0.620?(9):0.380?(9) ratio. The crystal studied was a racemic twin with BASF = 0.17?(5).

SUBMITTER: Parvez M 

PROVIDER: S-EPMC3393206 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature