W. Clegg et al., THE POLYMERIC STRUCTURE OF AQUACADMIUM BISNICOTINATE, Acta crystallographica. Section C, Crystal structure communications, 51, 1995, pp. 234-235
The title compound, poly[aquacadmium-bis(mu-nicotinato-kN:kO,kO')], [C
d(C6H4NO2)2(H2O)], consists of a polymeric network in which each nicot
inate acts as a bidentate chelating ligand towards one Cd atom through
its carboxylate group while simultaneously binding to a second Cd ato
m through its pyridine N atom. Cd has approximate pentagonal bipyramid
al coordination geometry. Water acts as a ligand; it is also involved
in hydrogen bonding to nearby carboxylate O atoms, contributing furthe
r to the polymeric network interactions.