ESR spectral studies of a Cu(II) salicylidene tyrosine complex

Citation
W. Shi et al., ESR spectral studies of a Cu(II) salicylidene tyrosine complex, APPL MAGN R, 20(1-2), 2001, pp. 289-295
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
APPLIED MAGNETIC RESONANCE
ISSN journal
0937-9347 → ACNP
Volume
20
Issue
1-2
Year of publication
2001
Pages
289 - 295
Database
ISI
SICI code
0937-9347(2001)20:1-2<289:ESSOAC>2.0.ZU;2-8
Abstract
A novel Schiff base derived from salicylidene and tyrosine and its copper(I I) complex have been synthesized and characterized. The composition of the complex is K[CuL(Ac)].H2O, where L = H13C16NO4. Electron spin resonance (ES R) spectra of the copper(II) complex were investigated at different tempera tures and in various solvents. The second-order effect and the relaxation e ffect were observed in the solution spectrum at room temperature and satisf actorily explained by the spin Hamiltonian. The bonding parameters of the C u(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 -b ond in the complex play an important role.