Electron spin resonance line-shape analysis for determination of unresolved metal hyperfine splittings in ion pairs. Application to the benzene anion radical

1971 ◽  
Vol 75 (18) ◽  
pp. 2769-2773 ◽  
Author(s):  
M. T. Jones ◽  
M. Komarynsky ◽  
R. D. Rataiczak
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Shape Analysis ◽  
Line Shape ◽  
Anion Radical ◽  
Ion Pairs ◽  
Line Shape Analysis ◽  
Spin Resonance ◽  
Hyperfine Splittings

An Electron Spin Resonance Examination of Ferrocenylalkyl- and Aryl Ketyls

1972 ◽  
Vol 50 (12) ◽  
pp. 1825-1830 ◽  
Author(s):  
G. Bigam ◽  
John Hooz ◽  
Siegfried Linke ◽  
R. E. D. McClung ◽  
Melvyn W. Mosher ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Free Electron ◽  
Hyperfine Splitting ◽  
Electron Densities ◽  
Spin Resonance ◽  
Hyperfine Splittings ◽  
Insight Into

Several ferrocenylalkyl- and aryl ketyls were generated and their e.s.r. spectra were recorded. Pentadeuterio-benzoylferrocene and benzoyl perdeuterioferrocene were synthesized. Analysis of the e.s.r. spectra of their corresponding ketyls enabled the determination of the hyperfine splitting constants of benzoylferrocene ketyl, and allowed an assignment of the electron densities at various positions in the molecule.A comparison of the magnitudes of the g-values for the ketyls derived from benzophenone (2.0034), benzoylferrocene (2.0062), and 2,2-dimethylpropanoylferrocene (2.0126), combined with the proton hyperfine splittings, gave some insight into the nature of the interaction of the free electron with the ferrocene system.

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