TY - JOUR
T1 - Dinuclear ruthenium complexes containing the Hpbl ligand: Synthesis, characterization, linkage isomerism, and epoxidation catalysis
AU - Francàs, Laia
AU - González-Gil, Rosa María
AU - Moyano, Daniel
AU - Benet-Buchholz, Jordi
AU - García-Antón, Jordi
AU - Escriche, Lluís
AU - Llobet, Antoni
AU - Sala, Xavier
PY - 2014/10/6
Y1 - 2014/10/6
N2 - © 2014 American Chemical Society. Three dinucleating Ru-Cl complexes containing the hexadentate dinucleating ligand [1,1′-(4-methyl-1H-pyrazole-3,5-diyl)bis(1-(pyridin-2-yl)ethanol)] (Hpbl) and the meridional 2,2′:6′,2″-terpyridine ligand (trpy) have been prepared and isolated. These complexes include {[RuCl(trpy)]2(μ-pbl-κ-N3O)}+ (1a+), {[RuCl(trpy)]2(μ-Hpbl-κ-N3O)}2+ (1b2+), and {[RuCl(trpy)]2(μ-Hpbl-κ-N2O2)}2+ (1c2+) and were characterized by analytic and spectroscopic techniques. In addition, complexes 1b2+ and 1c2+ were characterized in the solid state by monocrystal X-ray diffraction analysis. The coordination versatility of the Hpbl ligand allows the presence of multiple isomers that can be obtained depending on the Ru oxidation state and were thoroughly characterized by electrochemical techniques, namely, cyclic voltammetry and coulometry. Finally, 1a+ and its recently reported mononuclear analogue, in-[RuCl(Hpbl)(trpy)]+, have been tested as catalysts for epoxidation of cis-β-methylstyrene.
AB - © 2014 American Chemical Society. Three dinucleating Ru-Cl complexes containing the hexadentate dinucleating ligand [1,1′-(4-methyl-1H-pyrazole-3,5-diyl)bis(1-(pyridin-2-yl)ethanol)] (Hpbl) and the meridional 2,2′:6′,2″-terpyridine ligand (trpy) have been prepared and isolated. These complexes include {[RuCl(trpy)]2(μ-pbl-κ-N3O)}+ (1a+), {[RuCl(trpy)]2(μ-Hpbl-κ-N3O)}2+ (1b2+), and {[RuCl(trpy)]2(μ-Hpbl-κ-N2O2)}2+ (1c2+) and were characterized by analytic and spectroscopic techniques. In addition, complexes 1b2+ and 1c2+ were characterized in the solid state by monocrystal X-ray diffraction analysis. The coordination versatility of the Hpbl ligand allows the presence of multiple isomers that can be obtained depending on the Ru oxidation state and were thoroughly characterized by electrochemical techniques, namely, cyclic voltammetry and coulometry. Finally, 1a+ and its recently reported mononuclear analogue, in-[RuCl(Hpbl)(trpy)]+, have been tested as catalysts for epoxidation of cis-β-methylstyrene.
U2 - 10.1021/ic501483s
DO - 10.1021/ic501483s
M3 - Article
SN - 0020-1669
VL - 53
SP - 10394
EP - 10402
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 19
ER -