Electron spin resonance studies magnetic moments

Electron spin resonance studies of silver(II) pyridine complexes have proved to be extremely useful in determining the nature of the spedes in solution. Since natural silver has two isotopes, 107Ag and 109Ag, in approximately the same abundance, both of spin / = J, and since their nuclear magnetic moments differ by less than 15%, interpretation of spectra is often considered in terms of a single nucleus. The forms of the hyperfine splitting patterns for IN, cis and trans 2N, 3N and 4N, would be expected to be quite different and hence the number of pyridines can be readily assessed from well-resolved spectra. Spin Hamilton parameters obtained from both solid and frozen solution spectra are collected in Table 64.497 499 501-510... 

Electron spin resonance (ESR) is a sensitive spectroscopic method for the investigation of local crystal structure and electronic properties of paramagnetic species in materials. Such species carrying the magnetic moments are often employed as active electrode materials for lithium-ion batteries and their electrochemical properties substantially determined by their structural features. In this chapter, application of ESR method to study the electronic structure of layered and NASICON structured cathode materials is presented. 

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