ESR experiments and spectra simulations inYBa2Cu3O7−x,Y2BaCuO5, andBaCuO2+x
نویسندگان
چکیده
منابع مشابه
Combinatorics of NMR and ESR spectral simulations
Combinatorial techniques which provide information on intensity and signal patterns for NMR and ESR spectra are reviewed. It is shown that these techniques can be applied to both I3C and proton NMR of molecules as well as to predict the hyperfine pattern in the ESR spectra of complex polyatomic radicals.
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I discuss the difference between models, simulations, and experiments from an epistemological and an ontological perspective. I first distinguish between ‘static’ models (like a map) and ‘dynamic’ models endowed with the capacity to generate processes. Only the latter can be used to simulate. I then criticise the view according to which the difference between models/simulations and experiments ...
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It was recently shown that high resolution (14)N overtone NMR spectra can be obtained directly under magic angle spinning (MAS) conditions [L. A. O'Dell and C. I. Ratcliffe, Chem. Phys. Lett. 514, 168 (2011)]. Preliminary experimental results showed narrowed powder pattern widths, a frequency shift that is dependent on the MAS rate, and an apparent absence of spinning sidebands, observations wh...
متن کاملESR spectra of copper(II) complexes in the solids
The ESR spectra of Cu(sal)2 • 4H 20, Cu(sal)2(2-pycar)2 and Cu(sal)2(3-pycar)2 (sal = salicylate ion; pycar = pyridinemethanol) at 77 К were stud ied. The spin Hamiltonian parameters indicate that the unpaired electron is in the antibonding y/b]g molecular orbital. The ESR spectra of pentacoordinated Cu(II) complexes of the [Cu(phen)2X]C104 (phen = 1,10-phenanthroline; X = CI, Br) exhibit axia...
متن کاملESR Spectra of Fe-NO Complexes with Some Organic Ligands
E SR has been used in the study of iron(I)-nitrosyl complexes w ith organic ligands in solution. Four types of complexes have been identified on basis of the ESR param eters, namely Fe (NO) L 5, Fe (NO) L 2, Fe (NO)2L 2, and Fe (NO)2L. In the iron-nitrosyl complexes with the organic ligands used, the groups more often involved in the coordination are: —C —N H 2; —C —N H ; — C = 0 ; and —C = S (...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1989
ISSN: 0163-1829
DOI: 10.1103/physrevb.39.6694