Abstract
The EPR spectra of Cu(II)-complexes of substituted 4-R-phenyl-aminomethylene-Δ2-pyrazolinones-(5) [R = N(CH3)2,p-OCH3, H,p-Cl,p-NO2] were obtained using polycrystalline samples and solutions. The spin-Hamiltonian parameters\(\tilde g, \tilde A, \tilde D\) and theDebye radii have been determined. In toluene mononuclear and binuclear species can be detected. The Cu-Cu-distance has been estimated to be 0.43 nm.
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Ewert, U., Stößer, R., Tomaschewski, G. et al. Pyrazolonderivate IX. Monatsh Chem 113, 973–983 (1982). https://doi.org/10.1007/BF00799238
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DOI: https://doi.org/10.1007/BF00799238