Characterization of Some New Nickel(II) Dithiolato Mixed Ligand Complexes With Nitrogen Donor Ligands: Magnetic, Spectral, and Thermal Studies

Abstract

The f o l l o w i n g m i x e d l i g a n d c o m p l e x e s w e r e p r e p a r e d a n d c h a r a c t e r i z e d :( E t x a n ) 2 N i ( B o z ) 2 , ( E t x a n ) 2 N i ( B t z ) Z , ( M e x a n ) 2 N i ( m o r p h ) 2 , ( P r x a n ) 2 N i ( m o r p h ) 2 , ( B~x a n )~N i ( m o r p h )~, ( A c a c ) Z C o ( B o z ) 2 , ( A c a c ) 2 C o ( B t z ) 2 , ( A c a c ) 2 N i ( B o z ) * , a n d ( A c a c I 2 N i ( B t z )2. E t d t p = d i e t h y l d i t h i o p h o s p h a t e ,Mexan = m e t h y l x a n t h a t e , E t x a n = e t h y l x a n t h a t e , Prxan = propylxanthate, B u x a n = b u t y l x a n t h a t e , Acac = a c e t y l a c e t o n a t e , B o z = b e n z o x a z o l e , B t z = b e n z o t h i a z o l e , a n d m o r p h = m o r p h o l i n e . The compounds w e r e i d e n t i f i e d o n t h e b a s i s o f t h e i r e l e m e n t a l a n a l y s i s , I R a n d UV-VISs p e c t r a , m a g n e t i c m e a s u r e m e n t s , a n d t h e r m a l a n a l y s i s . 2 2'

Synthesis and Investigation of Mixed‐Ligand Transition Metal Complexes of Alkyl Dithiocarbonate and Benzoylhydrazine or Benzoylhydrazone Derivatives

“…The presence of only one band at 1025 cm 21 due to n(C-S) indicates the bidentate nature of the alkyldithiocarbonate ligands in these complexes. [8 -10] Further support for the coordination of the two ligands to the metal ions was provided by the appearance of bands at 520-560, 430 -460, and 480-510 cm 21 , which are assigned to n(M -O), [19] n(M -N), [19] and n(M -S), [9] respectively. …”

REACTIVITY OF CERTAIN BIOLOGICALLY IMPORTANT AZOLES AND MORPHOLINE TOWARDS Ni(II) AND Cu(II) COMPLEXES OF o-HYDROXYACETOPHENONEETHANOLIMINE AND N-SALICYLIDENE DERIVATIVES

“…(ii) A similar coordination mode is expected for the azoles and morpholine in the Ni(II) complexes (νNi-N,460-470 cm -1 , Table 3). Aly et al 10 prepared a number of Ni(II) mixed ligand complexes of alkylxanthate with benzothiazole, benzoxazole and morpholine in which these azoles and morpholine coordinate via the nitrogen atom.…”

“…6&7 It was recently reported that complexes of 2aminothiazole exhibit some significant in vivo antitumor activitry against P388 leukemia. 8&9 In view of this importance of Schiff bases and thiazoles and in view of our interest in the coordination chemistry of these Lewis bases, [10][11][12] the present paper deals with the preparation and characterization of ternary complexes of Ni(II) and Cu(II) comprising certain Schiff bases and thiazoles or morpholine.…”

THERMAL STABILITY OF Ni(II) AND Cu(II) MIXED LIGAND COMPLEXES DERIVED FROM BIOLOGICALLY IMPORTANT SCHIFF BASES, AZOLES AND MORPHOLINE

“…In view of the biological importance of Schiff bases and heterocyclic compounds and in view of our interest in the coordination chemistry of these ligands [7][8][9][10] , the present article describes the thermal decomposition of a number of mixed ligand complexes of Ni(II) and Cu(II) with Schiff bases azoles and morpholine in order to enhance more understanding of drug-metal ion interactions.…”