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Bonomo RP, D’Alessandro F, Grasso G, Impellizzeri G, Pappalardo G, Rizzarelli E, Tabbì G. Carcinine-β-cyclodextrin derivatives as scavenger entities of OH radicals and SOD-like properties of their copper(II) complexes. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.01.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Castan P, Viala C, Fabre PL, Nepveu F, Souchard JP, Bernardinelli G. Crystal structure, spectroscopic and magnetic studies, and antioxidative properties of catena-[diaqua(dihydro-orotato)manganese(II)]. CAN J CHEM 1998. [DOI: 10.1139/v97-234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The polynuclear manganese(II) complex of L-dihydroorotic acid has been synthesized and characterized by X-ray crystallography, UV-visible spectroscopy, and magnetic susceptibility measurements. Crystal data: triclinic, space group P1 bar , a = 4.7239(5) Å, b = 7.902(1) Å, c = 10.552(2) Å, α = 105.80(1)°, β = 98.864(7)°, γ = 104.69(1)°, V = 355.9(1) D 3, Z = 1, R = 0.035, Rw = 0.028. This complex consists of polymer chains of manganese atoms that are bound together via carboxylate bridges with a Mn...Mn distance in the chain of 4.724 D . The radical scavenging properties of the complex have been evaluated by ESR spectroscopy and cyclic voltammetry methods and compared to those of vitamin E and BHT (2,6-di-tert-butyl-4-methylphenol).Key words: orotic acid, L-dihydroorotic acid, manganese(II) complex, antioxidative properties.
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