Di-mu2-sulfito-kappa8O,O':O',O''-bis[(2,4,6-tri-2-pyridyl-1,3,5-triazine-kappa3N2,N1,N6)cadmium(II)] octahydrate.
The title compound, [Cd2(SO3)2(C18H12N6)2].8H2O, is a dimer built up around a symmetry center, where the sulfite anion displays a so far unreported coordination mode in metal-organic complexes; the anion binds as a mu2-sulfite-kappa4O,O':O',O'' ligand to two symmetry-related seven-coordinate Cd(II) cations, binding through its three O atoms by way of two chelate bites with an O atom in common, which acts as a bridge. The cation coordination is completed by a 2,4,6-tri-2-pyridyl-1,3,5-triazine ligand acting in its usual tridentate mode.
Díaz de Vivar
M Enriqueta
ME
Universidad Nacional de la Patagonia, Sede Puerto Madryn, 9120 Puerto Madryn, Chubut, Argentina. undiaz@cenpat.edu.ar
Baggio
Sergio
S
Garland
María Teresa
MT
Baggio
Ricardo
R