Preparation and Investigation of some Substituted Thiazole Complexes with Divalent and Trivalent Metals

K. Altai, I. Mustafa
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Abstract

A new complexes of some transition metal ions (Co(II), Ni(II), Cu (II) and some non-transition metal ions Zn(II), Cd(II), Hg(II) with two multidentate ligands 2-acetamidothiazole (at) and 2-acetamidobenzothiazole (abt). All the prepared complexes have been characterized by elemental analysis, Molar conductance, Magnetic susceptibility infrared and electronic spectral. The complexes were classified as: and abt) behave as Mondentate coordinated throughnitrogen of thiazole ring, the resulting complexes are of the type [ML 3 X 3 ] (M=Cr +3 when L= abt and at) (M=Fe +3 when L= abt,at). 2-When the ligands (at and abt) behave as bidentate coordinated through nitrogen of thiazole ring and nitrogen of amide or oxygen of the carbonyl, the resulting complexes are on the type [Co(abt) 2 .Cl.H 2 O]Cl.H 2 O, [ML 2 Cl 2 ] (M=Mn +2 ,Zn +2 ,Hg +2 when L= abt and at), [ML 2 .(H 2 O) 2 ](NO 3 ) 2 (M=Cr +3 when L= abt and at; M=Ni +2 when L=abt) and [CdL 2 ](NO 3 ) 2 (L=abt and at). 3-When the ligands (at and abt) behave as tridentate coordinated through the nitrogen of the thiazole ring and nitrogen of amide and the oxygen of the carbonyl group. The resulting complexes are on the type [Cu(abt) 2 ] (NO 3 ) 2 . The prepared complexes have octahedral structures except the complexes of type [CdL 2 ] (NO 3 ) 2 have tetrahedral structures.
一些二价和三价金属取代噻唑配合物的制备与研究
一些过渡金属离子(Co(II)、Ni(II)、Cu (II)和一些非过渡金属离子Zn(II)、Cd(II)、Hg(II)与两个多齿配体- 2-乙酰氨基噻唑(at)和2-乙酰氨基苯并噻唑(abt)形成新的配合物。通过元素分析、摩尔电导、磁化率、红外光谱和电子光谱对所制备的配合物进行了表征。配合物为:和abt),通过噻唑环的氮表现为单齿配位,所得到的配合物为[ML 3 x3]型(当L= abt和at时M=Cr +3)(当L= abt,at时M=Fe +3)。当配体(at和abt)通过噻唑环的氮和羰基的酰胺或氧的氮进行双齿配位时,得到的配合物类型为[Co(abt) 2 .Cl. h2o]Cl. h2o, [ML 2 Cl 2](L= abt和at时M=Mn +2,Zn +2,Hg +2), [ML 2 .(h2o) 2](no3) 2 (L= abt和at时M=Cr +3);M=Ni +2 (L=abt)和[cdl2](no3) 2 (L=abt和at)。当配体(at和abt)通过噻唑环上的氮和酰胺上的氮以及羰基上的氧而表现为三叉戟时。所得配合物为[Cu(abt) 2] (no3) 2型。除[cdl2] (no3) 2型配合物为四面体结构外,所制备的配合物均为八面体结构。
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