Synthesis and Characterization of some New Dinuclear Complexes of Ni(II), Pd(II) and Pt(II) with Bulky Substituted Thioether Ligands

Yıl 2019, Cilt: 6 , 43 - 51, 25.07.2019

A.m. Ameen N. H. Buttrus Omar K. Hassan

Öz

A series of new multidentate ligands (L1-L4), 1,1,2,2-tetrakis [2-(benzylthio)ethylthio]ethylene(L1),1,1,2,2-tetrakis
[2-(o-tolylthio) ethylthio])  ethylene
(L2)  , 1,1,2,2-tetrakis
[3-(p-chlorophenylthio) ethylthio] ethylene (L3)  and 1,1,2,2-tetrakis [2-(o-aminophenylthio)
ethylthio] ethyene (L4)  were prepared
from the reaction of equimolamar amount of (4-mercapto-2-thia-1-butyl benzene
or o-methyl-4-mercapto-1-thia-1-butyl benzene or
p-chloro-4-mercapto-1-thia-1-butyl benzene or o-amino-4-mercapto
-1-thia-1-butyl benzene and KOH) with tetrachloroethylene in (4:4:1) molar ratio
. Reaction of the above ligands with nickel (II) , palladium (II)  and platinum (II) chloride salts gave the
complexes of the general formulas : [M2(L)Cl4] and [Ni2(L)Cl2]Cl2 M=Ni(II) ,
Pd(II) and Pt(II) , L=L1-L4 . The synthesized ligands have been characterized
on the basis of their elemental analysis , FTIR, 1H ,13C NMR , and their
complexes were characterized by elemental analysis metal content, UV-Vis. spectroscopic
technique ,conductivity measurements and magnetic measurements. On the basis of
these studies, a four coordinate tetrahedral or square planar geometry around
the metal ions in the complexes has been proposed.

Anahtar Kelimeler

Bulky substituted thioether, Ni(II), Pd(II), Pt(II) complexes, Square planar complexes

Kaynakça

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