Bullock, Graham and Cook, Arthur and Foster, Aidan and Rosenberg, Lisa and Thompson, Laurence K (1985) Cobalt(II), Cobalt(III) and Nickel(II) Complexes of some Tetradentate Pyridyl Phthalazines. Inorganica Chimica Acta, 103 (2). pp. 207-215. DOI 10.1016/S0020-1693(00)87490-3Full text not available from this repository.
Cobalt(II), cobalt(III) and nickel(II) complexes of a series of tetradentate pyridyl-phthalazine ligands have been studied. Binuclear cobalt(II) and cobalt- (III) derivatives are obtained from aqueous solution with the ligands PAP and PAP4Me (PAP = 1,4-di(2’- pyridyl)aminophthalazine; PAPXMe = 1 ,Cdi(X’-methyl-2’-pyridyl)aminophthalazine), in which three ligands are bound to the binuclear centre. An X-ray study on [(PAP)aCo,(OH),] Br4*9Hz0 shows a binuclear centre involving two octahedral cobalt(III) ions bridged by two hydroxides and involving one tetradentate and two bidentate ligands. Other binuclear cobalt(H) derivatives, [(PAP4Me)Co2Xa] (X = Cl, Br, I, NCS) involve just tetradentate ligand. Binuclear nickel(I1) derivatives are also obtained and in one case, [(PAP)3Ni2(H20)2] Br4*6Hz0, X-ray data indicate a binuclear centre involving two bridging water molecules, a tetradentate bridging ligand and two bidentate ligands. Steric factors involvingmethyl substituents on the pyridine rings are important for PAP6Me, a 6-methyl derivative, and for both cobalt and nickel complexes of this ligand only mononuclear derivatives are obtained.
|Subjects:||99 - Other|
|Divisions:||99 - Other|
|Journal or Publication Title:||Inorganica Chimica Acta|
|Page Range:||pp. 207-215|
|Depositing User:||Sarah Humbert|
|Date Deposited:||26 Oct 2011 09:29|
|Last Modified:||23 Jul 2013 10:02|
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