Peri interactions in the 1,3,6,8-tetra-tert-butyl- and 1,3,8-tri-tert-butylnaphthalene anions. Electron spin resonance study

1975 ◽  
Vol 79 (16) ◽  
pp. 1740-1746 ◽  
Author(s):  
Ira B. Goldberg ◽  
Harry R. Crowe ◽  
Richard W. Franck
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Electron Spin Resonance Study ◽  
Tert Butyl ◽  
Spin Resonance ◽  
Spin Resonance Study

Electron spin resonance study of the hyperfine splitting constants of naturally abundant carbon-13 and nitrogen-15 in diphenylmethyl tert-butyl aminoxyl (nitroxide). Solvent and temperature effects

1984 ◽  
Vol 62 (8) ◽  
pp. 1653-1657 ◽  
Author(s):  
Edward G. Janzen
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Temperature Effects ◽  
Hyperfine Splitting ◽  
Electron Spin Resonance Study ◽  
Phenyl Radical ◽  
Tert Butyl ◽  
Radical Adduct ◽  
Spin Resonance ◽  
Spin Resonance Study

The β-13C and 15N hyperfine splitting constants in the phenyl radical adduct of phenyl tert-butyl nitrone (PBN), diphenylmethyl tert-butyl aminoxyl, have been measured as a function of solvent and temperature.

An Electron Spin Resonance Study of the tert-Butylsulfinyl Radical

1974 ◽  
Vol 52 (4) ◽  
pp. 555-556 ◽  
Author(s):  
James A. Howard ◽  
Edward Furimsky
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Low Temperatures ◽  
Half Life ◽  
Electron Spin Resonance Study ◽  
Tert Butyl ◽  
Field Center ◽  
Spin Resonance ◽  
Butyl Peroxide ◽  
Spin Resonance Study

The tert-butylsulfinyl radical, (CH3)3CSO•, can be prepared directly in the cavity of an e.p.r. spectrometer by photolysis of di-tert-butyl peroxide in a solution of tert-butylsulfenic acid in toluene or isopentane at low temperatures (−40° to−100°). The e.s.r. spectrum consists of a rather broad singlet (ΔHmis ∼ 1.9 G) with the field center at g = 2.0106.This radical undergoes self-reaction by a bimolecular process and a 2.5 × 10−7 M solution has a half-life of 0.07 s at −100 °C. It is, therefore, much shorter-lived than the iso-structural tert-butylperoxy radical, (CH3)3COO•.

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