The crystal structure of the title compound, [Cu-2(C2Cl3O2)(4)(C6H4N2)
(2)(H2O)].2CHCl(3), was determined by single-crystal X-ray diffraction
. Two Cu atoms, separated by a distance of 3.567 (2) Angstrom, are bri
dged by a water molecule and two trichloroacetate ions to form a local
binuclear unit. The binuclear units are linked by 3-cyanopyridine mol
ecules to form a two-dimensional network. The coordination geometry ar
ound Cu is tetragonally elongated octahedral. The spin-exchange intera
ction between the Cu atoms in the local binuclear unit is weakly antif
erromagnetic.