Optical charge transfer in the ion pair paraquat(2+) [Au(CN)(2)](-)

Authors
Kunkely, H Vogler, A
Citation
H. Kunkely et A. Vogler, Optical charge transfer in the ion pair paraquat(2+) [Au(CN)(2)](-), INORG CH C, 3(5), 2000, pp. 205-207
Citations number
27
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANIC CHEMISTRY COMMUNICATIONS
ISSN journal
13877003 → ACNP
Volume
3
Issue
5
Year of publication
2000
Pages
205 - 207
Database
ISI
SICI code
1387-7003(200005)3:5<205:OCTITI>2.0.ZU;2-L
Abstract
In aqucous solution paraquat(2+) (N,N'-dimethyl-4,4'-bipyridinium(2+)) and [Au(CN)(2)](-) form an ion pair (K similar to 90 M-1) which shows an outer- sphere [Au(CN)(2)](-) to paraquat(2+) charge transfer (CT) abaorption at la mbda(max) = 331 nm. A band analysis yields a potential of E-o similar to 3. 2 V for the one-electron oxidation of [Au(CN)(2)](-). Accordingly, Au(I) is a very weak CT donor. (C) 2000 Elsevier Science S.A. All rights reserved.