Abstract
The reaction of 2-hydroxy-6-methylpyridine (HL, 1) with nonanuclear nickel trimethyl-acetate Ni9(OH)6(OOCCMe3)12(HOOCCMe3)4 (2) in MeCN with a ratio M: L = 1: 1 under mild conditions (20 °C, 15 min) led to degradation of the metal core to form the hexanuclear complex (HL)2(µ 2-HL)2Ni6(µ3-OH)2(µ2-H2O)2(µ-OOCCMe3)8(η-OOCCMe3)2 (3). Further heating of 3 in acetonitrile at 80 °C for 4 h afforded the (HL)Ni6(µ 3-OH)(µ3,η2-L)3(µ,η2-L)(µ3-L)(µ 3-OOCCMe3)(µ-OOCCMe3)4(η2-OOCCMe3) complex. The reaction with the use of a 2: 1 THF-EtOH mixture instead of acetonitrile at 50 °C gave the decanuclear complex [Ni10(µ 3-O)2(µ3-OH)4(µ-OOCCMe3)6(µ3,η 2-L)6(EtOH)6](H2O)2, which is also produced from compounds 1 and 2 in ethanol. The structures of the resulting complexes were established by X-ray diffraction.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 908–917, May, 2007.
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Nikiforova, M.E., Sidorov, A.A., Aleksandrov, G.G. et al. Replacement of carboxylate bridges in polynuclear nickel pivalates with 2-hydroxy-6-methylpyridine anions. Russ Chem Bull 56, 943–952 (2007). https://doi.org/10.1007/s11172-007-0143-8
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DOI: https://doi.org/10.1007/s11172-007-0143-8