Two mononuclear manganese(III) complexes, [Mn(L)(NCS)] (I) and [Mn(L)(OH2)2] · Hfac · H2O (II), where L is the deprotonated form of N,N′-bis(5-fluoro-2-hydroxybenzylidene)ethane-1,2-diamine, Hfac is hexafluoroacetylacetonate, were prepared and characterized by elemental analysis, IR spectra and single crystal X-ray determination (CIF files CCDC nos. 1008309 (I), 1008310 (II)). The Mn atoms in both complexes are in octahedral coordination. Complex I crystallized in orthorhombic space group Pbca with unit cell dimensions a = 12.4090(4), b = 13.5432(5), c = 19.4637(7) Å, V = 3271.0(2) Å3, Z = 8, R 1 = 0.0423, wR 2 = 0.0922. Complex II crystallized in triclinic space group $$P\bar 1$$ with unit cell dimensions a = 7.6845(3), b = 88.984(2), c = 13.5522(7) Å, α = 78.369(1)°, β = 88.984(2)°, γ = 83.835(1)°, V = 1237.63(9) Å3, Z = 2, R 1 = 0.0526, wR 2 = 0.1421. In the crystal structure of I, the complex molecules are stack via π⋯π interactions along the y axis. In the crystal structure of II, the molecules are linked through intermolecular O-H⋯O hydrogen bonds, to form chains along the x axis. The catalytic oxidation on olefins of the complexes was studied.
Russian Journal of Coordination Chemistry – Springer Journals
Published: Feb 13, 2015
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