Electron paramagnetic resonance spectra of chromium(III) in titanium dioxide polymorphs: Exact analysis and simulation by the isotimic method | Zendy

Beltran L. Virgilio | Zendy; Tovany Luis Gonzalez | Zendy; Mile Brynmor | Zendy; Rowlands Christopher C. | Zendy

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Electron paramagnetic resonance spectra of chromium(III) in titanium dioxide polymorphs: Exact analysis and simulation by the isotimic method

Author(s) -

Beltran L. Virgilio,

Tovany Luis Gonzalez,

Mile Brynmor,

Rowlands Christopher C.

Publication year - 1995

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260330602

Subject(s) - electron paramagnetic resonance , chemistry , laser linewidth , chromium , ion , spectral line , paramagnetism , titanium dioxide , anatase , electron , titanium , analytical chemistry (journal) , nuclear magnetic resonance , condensed matter physics , physics , optics , metallurgy , materials science , laser , biochemistry , organic chemistry , photocatalysis , astronomy , quantum mechanics , chromatography , catalysis

The isotimic method allows a full analysis and accurate simulation of the experimental EPR spectrum of Cr(III) ions in axial field sites in the anatase polymorph of TiO 2 . The precise estimates of the magnetic and crystalline field parameters obtained from an optimum fit of experimental and simulated spectra are g eff = 1.9734 ± 0.0005, D = 40.6 ± 0.2 mT and a Lorentzian linewidth of Γ = 0.1 mT.

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