Search

Your search keyword '"Alexander Mikhailovsky"' showing total 5 results
Start Over Author "Alexander Mikhailovsky" Search Limiters Peer Reviewed
5 results on '"Alexander Mikhailovsky"'

5. Generation of reactive oxygen species by photolysis of the ruthenium(ii) complex Ru(NH3)5(pyrazine)2+ in oxygenated solution.

Author

Roberto Santana da Silva, Mario Sergio P. Marchesi, Antonio Claudio Tedesco, Alexander Mikhailovsky, and Peter C. Ford

Subjects
REACTIVE oxygen species, PHOTOCHEMISTRY, RUTHENIUM compounds, PYRIDAZINES
Abstract

Metal-to-ligand charge transfer photolysis of the ruthenium(ii) pyrazine complex Ru(NH3)5pz2+ (I) in pH 7.4 oxygenated phosphate buffer solution generates the Ru(iii) analog Ru(NH3)5pz3+ plus the reactive oxygen species singlet oxygen and superoxide. Based on the very short MLCT lifetime (re-measured as ∼250 ps in D2O) of I* and the quantum yield for singlet oxygen formation (0.01 for aerated D2O) the rate constant for oxygen quenching of I* was calculated to be ∼(3 ± 1) × 1010 M−1 s−1. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results