6864-03-5Relevant articles and documents
ESR and ENDOR investigations on various Wurster's radical cations in solution. Experimental results, theoretical ab initio, and DFT calculations
Grampp, Guenter,Kelterer, Anne-Marie,Landgraf, Stephan,Sacher, Michael,Niethammer, Dominique,Telo, Joao P.,Dias, Rui M. B.,Vieira, Abel J. S. C.
, p. 519 - 536 (2005)
ESR and ENDOR spectra are reported of several symmetrical substituted N,N,N′,N′-tetraalkyl-p-phenylenediamine radical cations in solution. Different N,N′-alkyl substituted paraphenylenediamines, like the ethyl, n-propyl, and iso-propyl derivative are compared with the parent N,N,N′,N′-tetramethyl-p-phenylenediamine (Wurster's Blue Cation). N,N,N′,N′-Tetrabenzyl-p-phenylenediamine, 1,4-dipyrrolidinylbenzene, and N,N′-bis[4-(dimethylamino)phenyl]piperazine are additionally investigated. Experimental and calculated hyperfine coupling constants are compared. Characteristic UV-VIS data and redox potentials in acetonitrile are reported, together with the syntheses of the compounds. Springer-Verlag 2005.