Synthetic Approaches to Mixed-Metal Heteroleptic Derivatives of Late Transition Metals |
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| Authors: | VG Kessler S Gohil M Kritikos |
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| Institution: | (1) Department of Chemistry, Swedish University of Agricultural Sciences, Box 7015, 75007 Uppsala, Sweden;(2) Department of Chemistry, Swedish University of Agricultural Sciences, Box 7015, 75007 Uppsala, Sweden;(3) Department of Structural Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden |
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| Abstract: | The approach based on isomorphous substitution permitted preparation of (Co, Ni)4(acac)4( 3–OMe)4(MeOH)4(I) via interaction of individual M4(acac)4(3–OMe)4(MeOH)4 in toluene/methanol media. The oxidation of I in air in solution in MeOH in the presence of NaOAc and aminoalcohols as catalysts gives Co2Ni2-(acac)4(3–OMe)4(OAc)2(II). The symmetrization reaction between a complex formed by a hard Pearson acid and a soft Pearson base and that formed by a soft acid and a hard base led to CuNi2(OCOC2H5)3(ORN)3-(RNOH)(III) and Ni(Ni0.25Cu0.75)2(3–OH)(2–OAc)(OAc)2(2,  2-ORN)3(2-RNOH)(IV) RN = CH(CH3)-CH2NMe2 via interaction of Ni(ORN)2 with copper propionate and copper acetate hydrate respectively in hydrocarbon media. |
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| Keywords: | precursor chemistry heterometallic alkoxides late transition metal alkoxides inserted catalytic sites |
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