Aseries of M-M-heterometallic coordination polymers: syntheses structures properties (M=Ni^+2/M^-=Ag^+1, Cd^+2, Zn^+2)

In this paper a series of new mono and heterometallic Ni(II) complexes of the general formula[Ni(3-Hophdtc)2],[Ni(Ag(3-Hophdtc)2}2], NiLn(Ag(3-Hophdtc)2}2], NiM(3- Hophdtc)4] ,[Ni(L)nM(3-Hophdtc)4].3-Hophdtc=3-hydroxy phenyl dithiocarbamate.when n = 2, L quinoline, 4-picoline, when n= 3, L= ethylenediamine, 1,10 phenanthroline, M=Zn^+2,Cd^+2. All the isolated complexes have been characterized by atomic absorption, elemental analysis,molar conductivity, Infrared, electronic absorption spectra and magnetic measurement.The conductivity measurements proved the non-electrolytic behaviour of all the compounds, suscetptibility measurements and electronic spectra shows a tetrahedral geometry for complexes of the type [Ni(3-Hophdtc)2],[Ni(Ag(3-Hophdtc)2}2], NiM(3- Hophdtc)4] and octahedral geometry for complexes of the type NiLn(Ag(3- Hophdtc)2}2],[Ni(L)nM(3-Hophdtc)4].