New synthetic route to monocarbonyl polypyridyl complexes of ruthenium: their stereochemistry and reactivity

Ruthenium(II)–CO complexes of N-[(2-pyridyl)methyliden]-α(or β)-aminonaphthalene: Synthesis, spectral studies, crystal structure, redox properties and DFT calculation

“…It becomes difficult to unambiguous assignment of NMR of the mixed complexes due to large number of protons from coordinated ligands. Similar results of photoexcitation of trans-(Cl)-[RuCl 2 (CO) 2 (bpy)] supports this conjecture of CO substitution by MeCN [40].…”

“…Photoirradiation of trans-(Cl)-[RuCl 2 (CO) 2 (b-NaiPy)] (1b) in MeCN solution shows spectral pattern of trans-(Cl)-[RuCl 2 (CO)-(MeCN)(b-NaiPy)] and suggests replacement of a carbonyl by the solvent molecule [40]. The irradiation was continued until the original pair of m(CO) bands in the IR spectrum was replaced by a single band at 1970 cm À1 .…”

X-ray Structure of a Ruthenium Dinuclear Complex Incorporating 4,4′-Bis(cyanamidophenylethynyl)benzene as a Ligand, a Conjugated Bridge Two Nanometers in Length

“…[20,21] The cyclic voltammogram of 1 in dimethylformamide shows a quasi-reversible one-electron wave at 0.752 V vs. SCE which becomes irreversible in acetonitrile and dichloromethane. Attempts to prepare oxidized species did not lead to the appearance of any intervalence transition Experimental Section Physical Measurements.…”

Synthesis and structures of photodecarbonylated ruthenium(II) complexes—potential intermediates for mixed ligand complexes

“…9,10 In contrast, the photodecarbonylation of [RuL(CO) 2 Cl 2 ] complexes, where L = bipyridine or related diimine, as a synthetic route to mixed ligand complexes has been largely overlooked except for a recent application to Ru() terpyridine complexes. 11 We report the application of photodecarbonylation in the synthesis of complexes of the form [RuL(CO)Cl 2 ] 2 . These complexes are ideal precursors to monocarbonylruthenium() complexes containing dissimilar bidentate ligands, [RuL(LЈ)(CO)Cl] ϩ .…”