X-ray absorption spectroscopy study on the electrochemical reduction of Co((DO)(DOH)(pn))Br-2

Authors
Giorgetti, M Berrettoni, M Ascone, I Zamponi, S Seeber, R Marassi, R
Citation
M. Giorgetti et al., X-ray absorption spectroscopy study on the electrochemical reduction of Co((DO)(DOH)(pn))Br-2, ELECTR ACT, 45(27), 2000, pp. 4475-4482
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ELECTROCHIMICA ACTA
ISSN journal
00134686 → ACNP
Volume
45
Issue
27
Year of publication
2000
Pages
4475 - 4482
Database
ISI
SICI code
0013-4686(2000)45:27<4475:XASSOT>2.0.ZU;2-5
Abstract
The reduction process of Co-III((DO)(DOH)(pn))Br-2 has been studied by X-ra y absorption spectroscopy. A structural rearrangement takes place during th e first reduction step, from Co-III to Co-II. It involves the cleavage of b oth axial bromide ligands. However, the reduction from Co-II to Co-I procee ds with retaining of the coordination geometry. These findings have also be en confirmed by an 'ad hoc' electrochemical experiment. (C) 2000 Elsevier S cience Ltd. All rights reserved.