SPECTROSCOPIC AND ELECTROCHEMICAL STUDIES ON DROXYPICOLINATE)-BIS(2,2'-BIPYRIDINE)RUTHENIUM(II) AND RELATED COMPLEXES

Authors
CONSTANTINO VRL DEOLIVEIRA LFC SANTOS PS TOMA HE
Citation
Vrl. Constantino et al., SPECTROSCOPIC AND ELECTROCHEMICAL STUDIES ON DROXYPICOLINATE)-BIS(2,2'-BIPYRIDINE)RUTHENIUM(II) AND RELATED COMPLEXES, Transition metal chemistry, 19(1), 1994, pp. 103-107
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Transition metal chemistry
ISSN journal
03404285 → ACNP
Volume
19
Issue
1
Year of publication
1994
Pages
103 - 107
Database
ISI
SICI code
0340-4285(1994)19:1<103:SAESOD>2.0.ZU;2-K
Abstract
The synthesis, spectra and electrochemistry of [Ru(bipy)2(picOH)]+ and {mu-picO-[Ru(bipy)2]2]2+ (bipy = 2,2'-bipyridine and picOH = 3-hydrox ypicolinate ion) are described. The spectroscopic properties in the vi sible region are dominated by the intense Ru --> bipy charge-transfer transitions. In the binuclear complex, the two [Ru(bipy)2L]2+ moieties are nonequivalent, exhibiting E1/2 = 0.69 and 1.20 V versus s.h.e. Th e partially oxidized species exhibits a weak intervalence transfer ban d at 1085 nm, and is consistent with a Robin-Day class II mixed valenc e complex.