One-electron reduction of an "extended viologen" p-phenylene-bis-4,4'-(1-aryl-2,6-diphenylpyridinium) dication.
One-electron reduction of the "extended viologen" dication 1 yields the red cation radical 2, characterized by strong near-IR absorption. It has been generated and studied by pulse radiolytic, electrochemical, redox titration, UV-visible, and electron paramagnetic resonance spectroscopic methods. All results are in agreement with a fully delocalized electronic structure for 2.
Funston
Alison
A
Chemistry Department, Brookhaven National Laboratory, Building 555A, Upton, New York 11973, USA.
Kirby
James P
JP
Miller
John R
JR
Pospísil
Lubomír
L
Fiedler
Jan
J
Hromadová
Magdaléna
M
Gál
Miroslav
M
Pecka
Jaroslav
J
Valásek
Michal
M
Zawada
Zbigniew
Z
Rempala
Pawel
P
Michl
Josef
J