Radical products in single electron transfer reactions of lithium triethylhydridoborate as detected by ESR and multinuclear (proton, boron-10, boron-11, and nitrogen-14) ENDOR spectroscopy

, und . Angewandte Chemie 95 (11): 915--916 (1983)


LiBHEt3 reacted with 4,4'-bipyridine (I) to give I.2BEt3.bul.- and with 2,2'-bipyridine (II) to give II.Li.bul., as shown by ESR. Hyperfine couplings in these complexes and in a pyrazine (III) complex, III.2BEt3.bul.- were detd. by the ENDOR/TRIPLE method. Gross information about dipolar and quadrupolar interactions can also be obtained from temp.-dependent ENDOR intensities and linewidths. ENDOR resonance from 10B and 11B were detected for the 1st time because of their favorable relaxation behavior in these systems. on SciFinder(R)

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