Journal
APPLIED MAGNETIC RESONANCE
Volume 20, Issue 1-2, Pages 289-295Publisher
SPRINGER WIEN
DOI: 10.1007/BF03162327
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A novel Schiff base derived from salicylidene and tyrosine and its copper(II) complex have been synthesized and characterized. The composition of the complex is K[CuL(Ac)].H2O, where L = H13C16NO4. Electron spin resonance (ESR) spectra of the copper(II) complex were investigated at different temperatures and in various solvents. The second-order effect and the relaxation effect were observed in the solution spectrum at room temperature and satisfactorily explained by the spin Hamiltonian. The bonding parameters of the Cu(II) complex were calculated with spectral parameters from ESR spectra at low temperature. Its bonding characterization and stability were discussed. The result shows that both the in-plane sigma -bond and the in-plane pi -bond in the complex play an important role.
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