The synthesis and X-ray structure of new Cu(II) complex with 4-(pyridyl-2)-1,2,4-triazole (pytrz) are reported. The crystal structure of [Cu 3 (pytrz) 8 (H 2 O) 4 ](NO 3 ) 6 has been determined by X-ray diffraction. Crystals are triclinic, space group P-1, unit cell parameters are: a=11.971(2), b=13.079(3), c=14.439(2)A, α=114.03(1), β=97.79(1), γ=111.02(1) ^ o, V=1819.2(6)A 3 , Z=1, R f =0.0706. The structure consists of linear trinuclear cations with a +6 charge and six noncoordinated NO 3 - anions. The central copper(II) atom is located on an inversion centre and is coordinated by six nitrogen atoms of pytrz molecules bridging via the nitrogen atoms in the N 1 ,N 2 positions. Each external copper(II) atom completes its coordination sphere with one monodentate pytrz via the nitrogen atom in the N 1 position and two coordinated water molecules.