Dinuclear and Dendritic Polynuclear Ruthenium(II) and Osmium(II) Polypyridine Complexes: Electrochemistry at Very Positive Potentials in Liquid SO2

Content Provider	Semantic Scholar
Author	Ceroni, Paola Paolucci, Francesco Paradisi, Carmen Juris, Alberto Roffia, Sergio Serroni, Scolastica Campagna, Sebastiano Bard, Allen J.
Copyright Year	1998
Abstract	The electrochemistry in liquid SO2 of RuII and OsII dendritic polynuclear complexes (two hexanuclear species, having as the core a bis-chelating ligand, and one decanuclear species, built around a metal core) has been performed together with that of several of their lower-nuclearity analogues (five dinuclear and one trinuclear species), which can be considered as components of the larger dendritic species. All of the compounds contain 2,3- or 2,5-bis(2-pyridyl)pyrazine (2,3- or 2,5-dpp) as bridging ligands and 2,2‘-bipyridine (bpy) as terminal ligands. The identification of the redox sites for the compounds with high nuclearity was made possible by a bottom-up approach based on an extensive comparison of their electrochemical behavior with that of the simpler species. Owing to the large anodic potential window of liquid SO2 (to ∼4.3 V vs SCE under our experimental conditions) in conjunction with tetrabutylammonium hexafluoroarsenate as supporting electrolyte, several metal- and ligand-centered oxidations ...
Starting Page	5480
Ending Page	5487
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1021/ja980026e
Volume Number	120
Alternate Webpage(s)	http://bard.cm.utexas.edu/resources/Bard-Reprint/646.pdf
Alternate Webpage(s)	https://doi.org/10.1021/ja980026e
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article