One-electron reduction of an "extended viologen" p-phenylene-bis-4,4'-(1-aryl-2,6-diphenylpyridinium) dication

Alison Funston; James P Kirby; John R Miller; Lubomír Pospísil; Jan Fiedler; Magdaléna Hromadová; Miroslav Gál; Jaroslav Pecka; Michal Valásek; Zbigniew Zawada; Pawel Rempala; Josef Michl

doi:10.1021/jp053556n

One-electron reduction of an "extended viologen" p-phenylene-bis-4,4'-(1-aryl-2,6-diphenylpyridinium) dication

J Phys Chem A. 2005 Dec 8;109(48):10862-9. doi: 10.1021/jp053556n.

Authors

Alison Funston¹, James P Kirby, John R Miller, Lubomír Pospísil, Jan Fiedler, Magdaléna Hromadová, Miroslav Gál, Jaroslav Pecka, Michal Valásek, Zbigniew Zawada, Pawel Rempala, Josef Michl

Affiliation

¹ Chemistry Department, Brookhaven National Laboratory, Building 555A, Upton, New York 11973, USA.

PMID: 16331929
DOI: 10.1021/jp053556n

Abstract

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.