Synthesis and Crystal Structure of Ternary Complex [Cu_2(C_8H_4F_3O_2S)_2O(C_3H_3N_2)]

Reaction of Cu powder with 2-thenoyltrifluoroacetone and pyrazol in methanol and aceton yielded new complex [Cu_2(C_8H_4F_3O_2S)_2O(C_3H_3N_2)].The structure of the complex is characterized by elemental analyses,IR spectra and conductivity.The crystal structure of the title complex was determined.The title complex is monoclinic system,space group P2(1)/C,a=0.786 63(16) nm,b=1.792 0(4) nm,c=1.705 3(3) nm;V=2.359 3(8) nm~3,Z=4,Dc=1.843 g·cm~(-3),F(000)=(1 300),ρ_(ma)=574 e·nm~(-3),ρ_(min)=-418 e·nm~(-3).The final R=0.056 8,w_R=0.116 6 for 3 537 observed reflections [ I2σ(I)] out of 5 926 unique reflections.In this complex,copper(II) ion is coordination by three O and one N atom.The copper(II) atom displays a nearly square coordination geometry.