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RESEARCH PRODUCT

Synthesis and characterization of mono- and binuclear copper(II) complexes with 2,2′:6′,2″-terpyridine (terpy) and carboxylates: X-ray crystal structure of [Cu(terpy)(OOCH)(OH2)](ClO4) complex

Daniel Beltrán-porterAurelio BeltránAmparo FuertesCarles MiravitllesEmilio EscrivàJosé V. Folgado

subject

chemistry.chemical_classificationStereochemistrychemistry.chemical_elementCrystal structureCopperInorganic ChemistryPerchloratechemistry.chemical_compoundCrystallographychemistryHexafluorophosphateX-ray crystallographyMaterials ChemistryCarboxylatePhysical and Theoretical ChemistryTerpyridineInorganic compound

description

Abstract Perchlorate and hexafluorophosphate salts of monomeric [Cu(terpy)(OOCH)(OH2)]+ and dimeric [Cu(terpy)(OOCR)]22+ cations (terpy = 2,2′:6′,2″-terpyridine, R = CH3 or C2H5) have been synthesized and characterized by IR, electronic and ESR spectra, and analytical data. Spectroscopic results indicate a five-coordinate, close-to-square pyramidal geometry around the copper(II) ion. The half-field absorption in the ΔMs = 2 region of powdered X-band ESR spectra has been observed for the dimeric species. The crystal structure of [Cu(terpy)(OOCH)(OH2)](ClO4) has been determined by X-ray diffraction methods. The compound crystallizes in the space group P21/c with unit-cell dimensions: a = 7.341(3), b = 13.919(2), c = 18.081(3) A, β = 101.68(3)°, V = 1809(1) A3, Z = 4. The structure was refined to R = 0.044, Rw = 0.051.

https://doi.org/10.1016/s0277-5387(00)80836-0