Abstract
The mononuclear copper(II) complexes [CuL(ClO4)(H2O)2]ClO4 and [CuL(bipy)(ClO4)]ClO4[L = 2,2,4,4,6,6-hexakis(3,5-dimethylpyrazolyl)-2λ5,4λ5,6λ5-cyclotriphosphaza-1,3,5-triene] have been prepared and characterized by optical, EPR and IR spectral data. The crystal structure of an unusual cyclophosphazene-bridged dicopper complex [H2dmpz][(CuCl2)2{N3P3O(dmpz)5}](Hdmpz = 3,5-dimethylpyrazole) has been determined: space group P, a= 11.640(3), b= 14.497(14), c= 14.775(3), α= 77.62(6), β= 82.10(2), γ= 74.88(6)°, and Z= 2. The geometry around both copper atoms is a distorted trigonal bipyramidal with the axial positions occupied by pyrazolyl pyridinic nitrogens and the equatorial positions by one cyclophosphazene ring nitrogen and two chlorine atoms.
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