Abstract
The new complexes [Ni(Hbstbh) 2(en)] ( 1) and [Ni(Hpchce)( o-phen) 2]Cl·CH 3OH·H 2O ( 2) with N′-benzoyl hydrazine carbodithioic acid benzyl ester (H 2bstbh) and [N′-(pyridine-4-carbonyl)-hydrazine]-carbodithioic acid ethyl ester (H 2pchce) have been synthesized, containing ethylenediamine (en) or o-phenanthroline ( o-phen) as coligands. The ligands and their complexes have been characterized by elemental analyses, IR, magnetic susceptibility and single crystal X-ray data. [Ni(Hbstbh) 2(en)] ( 1) and [Ni(Hpchce)( o-phen) 2]Cl·CH 3OH·H 2O ( 2) crystallized in the monoclinic and triclinic systems, space group C2/ c and P - 1 , respectively. The (N, O) donor sites of the bidentate ligands chelate the Ni(II) center and form a five-membered CN 2ONi ring. The resulting complexes are paramagnetic and have a distorted octahedral geometry.
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