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Synthesis and Characterization of the Complexes of Pentane-2,4-dione with Nickel(II) and Cobalt(III): [Ni(acac)2]·0.5CH3OH and [Co(acac)2NO3]·2H2O (acac = Pentane-2,4-dione)

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Author(s): Yang Qu | Hai-Liang Zhu | Zhong-Lu You | Min-Yu Tan

Journal: Molecules
ISSN 1420-3049

Volume: 9;
Issue: 11;
Start page: 949;
Date: 2004;
Original page

Keywords: Pentane-2 | 4-dione | crystal structure | cobalt(III) complex | nickel(II) complex

ABSTRACT
Two mononuclear complexes, [Ni(acac)2]·0.5CH3OH (1) and[Co(acac)2NO3]·2H2O (2) (acac = pentane-2,4-dione), have been synthesized andcharacterized by single crystal X-ray analysis. Complex 1 crystallizes in the monoclinicspace group P21/c with a = 9.295(4), b = 11.450(5), c = 12.974(6) å, V = 1379.1(11) å3,β = 92.854(7), and Z = 4. Complex 2 crystallizes in the triclinic space group P(-1) with a= 8.153(9), b = 9.925(11), c = 10.355(12), V = 746.3(15) å3, α = 70.530(16), β =71.154(15), γ = 80.698(16) and Z = 2. Complex 1 has a one-dimensional chain-likestructure, which is extended by weak hydrogen contacts, while complex 2 shows a three–dimensional network structure.