Electric Literature of 13395-16-9, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps. In an article, authors is Salmon, Lionel, once mentioned the application of Electric Literature of 13395-16-9, Name is Bis(acetylacetone)copper,molecular formula is C10H16CuO4, is a conventional compound.
Treatment of [M(H2Li)] with U(acac)4 in refluxing pyridine led to the formation of the trinuclear complexes [{MLi(py)x}2U] [L1 = N,N?-bis(3-hydroxysalicylidene)-2,2-dimethyl-1,3-propanediamine and M = Ni, Cu or Zn; L2 = N,N?-bis(3-hydroxysalicylidene)-1,3-propanediamine and M = Cu or Zn; L3 = N,N?-bis(3-hydroxysalicylidene)-2-methyl-1,2-propanediamine and M = Ni, Cu or Zn; x = 0 or 1]. The dinuclear compounds [ML3(py)U(acac)2] (M = Cu, Zn) were isolated from the reaction of [M(H2L3)] and U(acac)4 in pyridine at 60C. The crystal structures of the trinuclear complexes are built up by two orthogonal MLi(py)x units which are linked to the central uranium ion by the two pairs of oxygen atoms of the Schiff base ligand; the U(IV) ion is found in the same dodecahedral configuration but the Cu(II) ion coordination geometry and the Cu … U distance are different by passing from L1 or L2 to L3, due to the shortening of the diimino chain of L3. These geometrical parameters seem to have a great influence on the magnetic behaviour of the complexes since the Cu-U coupling in [{CuLi(py)x}2U] (i = 1, 2) is ferromagnetic while it is antiferromagnetic in [{CuL3(py)x}2U]. In the compounds [{CuL3(py)x}2U] and [CuL3(py)U(acac)2], the Cu coordination and the Cu … U distance are very similar, and both exhibit an antiferromagnetic interaction.
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Reference£º
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”