56077-38-4Relevant articles and documents
Polycationic states of oligoanilines based on Wurster's blue
Ito, Akihiro,Sakamaki, Daisuke,Ino, Haruhiro,Taniguchi, Aya,Hirao, Yasukazu,Tanaka, Kazuyoshi,Kanemoto, Katsuichi,Kato, Tatsuhisa
experimental part, p. 4441 - 4450 (2010/03/03)
Polycations of two oligoanilines based on Wurster's blue, N,N',N-tris[4-(dimethylamino)phenyl]-N,N',N-trimethyl1,3,5-benzenetriamine (2) and N,N'-bis(3-{N-[4-(dimethylamino)phenyl]-N-methylamino}phenyl)-N,N'-dimethyl- pphenylenediamine (3), have been generated efficiently by a stepwise oxidation procedure, Their redox behavior was characterized in terms of the embedded p-phenylenediamine (PD) units and their intramolecular connectivity, EPR analysis of the oxidized 2 and 3 species revealed the existence of high-spin species in solution. It was found that spin multiplicities of the dominant polycationic species of 2 and 3 formed by 3 equiv, of oxidant can be assigned to quartet: and doublet states, respectively on the basis of pulsed EPR spectroscopy, These results demonstrate that the intramolecular connectivity between the spin-containing units decisively influences the spin preference of the multispin systems based on oligoanilines.