scholarly journals A Commercially Available Ruthenium Compound for Catalytic Hydrophosphination

2019 ◽  
Vol 60 (3-4) ◽  
pp. 446-451 ◽  
Author(s):  
Michael P. Cibuzar ◽  
Steven G. Dannenberg ◽  
Rory Waterman
Keyword(s):  
Ruthenium Compound

scholarly journals A Commercially Available Ruthenium Compound for Catalytic Hydrophosphination

2019 ◽  
Author(s):  
Michael P. Cibuzar ◽  
Steven G. Danneberg ◽  
Rory Waterman
Keyword(s):  
Ruthenium Compound ◽  
Michael Acceptors ◽  
Styrene Derivatives ◽  
Catalyzed Reactions ◽  
Secondary Phosphines

Hydrophosphination with a commercially available ruthenium compound, bis(cyclopentadienylruthenium dicarbonyl) dimer ([CpRu(CO)2]2), was explored. Styrene derivatives or Michael acceptors react readily with either primary or secondary phosphines in the presence of 0.1 mol% of [CpRu(CO)2]2 under photolysis with an inexpensive and commercially available UV-A 9W lamp. In comparison to related photoactivated hydrophosphination reactions with [CpFe(CO)2]2 as a catalyst, these ruthenium-catalyzed reactions proceed at greater relative rates with lower catalyst loadings. <br>

Influence of chemical stability on the activity of the antimetastasis ruthenium compound NAMI-A

2002 ◽  
Vol 38 (3) ◽  
pp. 427-435 ◽  
Author(s):  
G Sava ◽  
A Bergamo ◽  
S Zorzet ◽  
B Gava ◽  
C Casarsa ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Ruthenium Compound

Reactivity of an antimetastatic organometallic ruthenium compound with metallothionein-2: relevance to the mechanism of action

Metallomics ◽  
2009 ◽  
Vol 1 (5) ◽  
pp. 434 ◽  
Author(s):  
Angela Casini ◽  
Andrei Karotki ◽  
Chiara Gabbiani ◽  
Francesco Rugi ◽  
Milan Vašák ◽  
...  
Keyword(s):  
Mechanism Of Action ◽  
Ruthenium Compound

Exploring weak interactions to assemble a nitrosyl–ruthenium compound able to release NO under visible light irradiation

Polyhedron ◽  
2009 ◽  
Vol 28 (6) ◽  
pp. 1121-1126 ◽  
Author(s):  
Elisa C. Fornari ◽  
Mario S.P. Marchesi ◽  
Antônio E.H. Machado ◽  
Sofia Nikolaou
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Weak Interactions ◽  
Light Irradiation ◽  
Ruthenium Compound

The Effect of Ruthenium on the Corrosion of Stainless Steel in Nitric Acid Liquors

CORROSION ◽  
10.5006/3402 ◽  
2020 ◽  
Vol 76 (1) ◽  
pp. 93-102
Author(s):  
Guy O.H. Whillock ◽  
Kim A. Summers ◽  
Angela Jackson
Keyword(s):  
Thermal Decomposition ◽  
Stainless Steel ◽  
Nitric Acid ◽  
Corrosion Potential ◽  
Purex Process ◽  
In Situ Oxidation ◽  
Nitrosyl Complexes ◽  
Ruthenium Compound ◽  
Corrosive Effect

Nuclear reprocessing plant liquors resulting from the PUREX process contain ruthenium present as a mixture of nitrosyl complexes in nitric acid. Ruthenium is not corrosive toward stainless steels unless the conditions are sufficiently oxidizing to promote the decomposition of one or more of the nitrosyl complexes present, in which case the production of finely-divided RuO2 occurs. In this work, the corrosive effect of RuO2 coatings that were produced by the thermal decomposition of RuCl3 is reported. The corrosion potential and corrosion rate of stainless steel were found to be significantly increased by the presence of RuO2 coatings, and depended on the temperature, but did not depend on the amount of RuO2 present provided above a threshold which was found to lie in the range 43 μg/cm2 to 86 μg/cm2 of RuO2. Corrosion potential measurements indicated that in hot 10 M nitric acid, the RuO2 coatings formed by the thermal decomposition of RuCl3 reproduced the effect of RuO2 formed from the in situ oxidation of a tri-nitrato ruthenium compound. However, a stronger, but only short-term, effect was also found, which is attributed to an intermediate precursor of RuO2, considered likely to be RuO4. Two separate corrosion accelerating effects can therefore arise in ruthenium-bearing liquors.

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