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A N-pyridyl-o-aminophenol derivative that stabilizes mixed-valence states of ruthenium ion is disclosed. A diruthenium complex, [(LIQ0)Ru2Cl5]•MeOH (1•MeOH) was successfully isolated, where LIQ0 is the o-iminobenzoquinone form of 2-((3-nitropyridin-2-yl)amino)phenol (LAPH2). In 1, LIQ0 towards one ruthenium centre is a NO-donor redox noninnocent, while towards another ruthenium it is a pyridine donor redox innocent ligand. 1 is a diruthenium (II, III) mixed valence complex, [RuII(LIQ0)(μ-Cl)2RuIII], with a minor contribution of diruthenium (III, III) state, [RuIII(LISQ●-)(μ-Cl)2RuIII] where LISQ●- is the o-iminobenzosemiquinonate anion radical form of the ligand. 1- and 1+ are respectively diruthenium (II, II), [RuII(LIQ0)(μ-Cl)2RuII], and diruthenium (III, III), [RuIII(LIQ0)(μ-Cl)2RuIII], complexes of LIQ0. 12- is a diruthenium (II, II) complex of o-iminobenzosemiquinonate anion radical (LISQ●-), [RuII(LISQ●-)(μ-Cl)2RuII] with a minor contribution of diruthenium (III, II) form, [RuIII(LAP2-)(μ-Cl)2RuII]. 12+ is a diruthenium (III, IV) mixed valance complex of LIQ0, [RuIII(LIQ0)(μ-Cl)2RuIV]. 1 and 12+ exhibit inter valence charge transfer transitions at 1300 and 1370 nm.
This article was published in the following journal.
Name: Chemistry (Weinheim an der Bergstrasse, Germany)
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Unstable isotopes of ruthenium that decay or disintegrate emitting radiation. Ru atoms with atomic weights 93-95, 97, 103, and 105-108 are radioactive ruthenium isotopes.
Inorganic compounds that contain ruthenium as an integral part of the molecule.
An inorganic dye used in microscopy for differential staining and as a diagnostic reagent. In research this compound is used to study changes in cytoplasmic concentrations of calcium. Ruthenium red inhibits calcium transport through membrane channels.
Process by which organisms use various cues to develop a route to a destination and their ability to travel such a planned route.
Neoplasms composed of more than one type of neoplastic tissue.