PUMA publications for /user/b_schwederski/hyperfine%20triethylhydridoborate;triple%20triethylhydridoborateMon Jul 15 13:41:23 CEST 2019Angewandte Chemie11915--916Radical products in single electron transfer reactions of lithium triethylhydridoborate as detected by ESR and multinuclear (proton, boron-10, boron-11, and nitrogen-14) ENDOR spectroscopy951983ENDOR;electron bipyridine bipyridine;ENDOR bipyridine;boron borohydride complex coupling electron hyperfine lithium transfer triethyl triethylhydridoborate triethylhydridoborate;ESR triethylhydridoborate;TRIPLE 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)]