The three-dimensional coordination polymer [Cd(tcm)(hmt)(H2O)](tcm) (t
cm(-) = tricyanomethanide, C(CN)(3)(-); hmt = hexamethylenetetramine)
has a rutilelike topology, with octahedral centers (cadmium atoms) and
trigonal centers (hmt ligands and half the tcm anions) in the ratio 1
:2. One of the connections of the three-connecting hmt ligands is a hy
drogen-bonding interaction with coordinated water ligands.