99234-94-3Relevant academic research and scientific papers
Generation, ESR and ENDOR Study of Radical Cations Derived from Tetraphenylhydrazine, 5,6-Dihydro-5,6-diphenylbenzocinnoline, and Benzobenzocinnolinocinnoline
Neugebauer, Franz A.,Bock, Michael,Kuhnhaeuser, Sigrid,Kurreck, Harry
, p. 980 - 990 (2007/10/02)
Radical cations of the title compounds (1a*+, 2*+, 3*+) and of a series of derivatives (1b*+, 1c*+, 6a*+ - c*+) representing hydrazine radical cations were generated by oxidation.ENDOR studies of the tetraarylhydrazine radical cations 1a*+ - c*+ confirm the hindered rotation of the aryl groups and yield a partial assignment of the hyperfine splitting constants.According to the ESR-ENDOR results of 1a*+ and 3*+ linkage of the N,N'-phenyl groups through their o-positions does not considerably flatten the conjugation system.
The preparation of specifically deuterated diphenylamines
Doak, Wesley A.,Knessl, Charles,Labaziewicz, Henryk,O'Connor, Sally E.,Pup, Liviu,et al.
, p. 3371 - 3373 (2007/10/02)
Procedures have been developed for for the preparation, at levels of label which exceed 90percent, of ring-deuterated diphenylamines (DPAs) with the label at specific ring positions.The compounds so prepared are DPA-d10, DPA-2,4,6,2',4',6'-dsu
