Kamalov, G. L. published the artcileSpectra of some β-dicarbonyl complexes of copper in crystals and solutions, Name: Copper(II) ethylacetoacetate, the publication is Ukrainskii Khimicheskii Zhurnal (Russian Edition) (1982), 48(11), 1142-7, database is CAplus.
The UV and visible absorption and diffuse reflection spectra of CHCl3 solutions and solid CuL2 (HL = R1C(O)CR2HC(O)R3; R1, R2, and R3 = alkyl, fluoroalkyl, Ph, and H) were deconvoluted onto 3 gaussian components ν1, ν2, and ν3. Starting from the short-wavelength ν1 band, the bands were attributed to the dxz,yz → dxy, dz2 → dxy, and dx2–y2 → dxy transitions. The transfer from a crystalline state into solution resulted in a bathochromic shift of the ν1 band of all complexes. The effect was explained by a formation of adducts with CHCl3 as a result of the interligand interactions in the 1st and 2nd coordination sphere. The resulting weakening of the Cu-O bond is reflected by a decrease of the O atom field strength which in turn decreases the splitting of the Cu d levels. The bathochromic ν1 shift is brought about by an incomplete mutual compensation of a tetrahedral distortion and a change of a ligand field strength. In agreement with this are the observed hypsochromic ν2 and bathochromic ν3 shifts.
Ukrainskii Khimicheskii Zhurnal (Russian Edition) published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Name: Copper(II) ethylacetoacetate.
Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”