Syntheses of Polynuclear Complexes from Imidazoles-Cobalt (II) Acetate Complexes
1997 Volume 1997 Issue 3 Pages 184-189
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1997 Volume 1997 Issue 3 Pages 184-189
New imidazoles-cobalt (II) acetate complexes and their polynuclear complexes were synthesized by the reaction of cobalt ( II) acetate with imidazoles (HL: HIm, 2-CH3. HIm, 2-C2H5 HIm, 2- (CH3) 2CH H Im, 4-CH3 HIm). The mononuclear complexes obtained were [CoA2(HL)2] (A: C H3C00-)with the tetrahedral configuration, and no complexes of [Co (HL), 2]A2( n =4, 6) type could be synthesized. Pink polynuclear complexes in the form of [CoL2]. (L: i m-, 2-CH3 - im-, 2-C2H5i m -, 4-CH3im-) with the tetrahedral cobalt (II) units were obtained by reftuxing a ethanol, 1-propano l or 1butanol solution of [CoA2 (HL) 2], whereas [Co (2- (CH3) 2CH im) 2]n did not yield. Thermal properties of [CoA2 (HL) 2] and [CoL2], were also investigated.
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