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A linear trinuclear CoII–CoII–CoII complex with -acetate bridges: di--acetato-bis­[-N,N′-bis­(salicyl­idene)-1,4-butane­diaminato]­tricobalt(II)

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The title linear trinuclear complex, di--acetato-1:22O,O′;2:32O,O′-bis{2,2′-[1,4-butane­diyl­bis­(nitrilo­methyl­idyne)]­diphenolato}-1:26O,N,N,O′:O,O′;2,36O,O′:O,N,N,O′-tricobalt(II), [Co3(C18H18N2O2)2(C2H3O2)2], was prepared by the reaction of the tetradentate Schiff base ligand bis­(salicyl­idene)-1,4-di­amino­butane and Co(CH3COO)2·2H2O in a methanol solution. The central CoII ion, which is located on an inversion center, has a distorted octahedral coordination involving four bridging O atoms from two Schiff base ligands in the equatorial plane and one O atom from each bridging acetate group in the axial positions. The coordination around the terminal CoII ion is irregular square pyramidal, with two O and two N atoms of the ligand in the basal plane and one O atom from an acetate group in the apical position. The acetate bridges linking the central and terminal CoII ions are mutually trans. The closest Co…Co separation is 3.125 (4) Å.
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Document Type: Research Article

Publication date: December 1, 2004

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