Photoinduced NO Release by Visible Light Irradiation from Pyrazine-Bridged Nitrosyl Ruthenium Complexes
- 8 November 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 125 (48) , 14718-14719
- https://doi.org/10.1021/ja0376801
Abstract
The binuclear complex [RuII(NH3)5(pz)RuII(bpy)2(NO)](PF6)5 was prepared and characterized by elemental analysis, UV−vis, and IR spectroscopy. The complex UV−vis spectrum has presented bands at 242, 286, and 530 nm in acetate buffer solution at pH 4.5. The photochemical study by laser flash-photolysis at 532 nm showed the NO release account from the NO measured by a NO sensor. The quantum yield for NO release (0.025 ± 0.004 mol einsten-1) was determined with a laser flash-photolysis apparatus (Continuum Q-switched Nd:YAG laser). The major irradiation product of the [RuII(NH3)5(pz)RuII(bpy)2(NO)]5+ complex besides nitric oxide is [RuIII(NH3)5(pz)RuII(bpy)2(H2O)]5+.Keywords
This publication has 4 references indexed in Scilit:
- Structure, chemical and photochemical reactivity and biological activity of some ruthenium amine nitrosyl complexesCoordination Chemistry Reviews, 2003
- Flash Photolysis Studies of the Ruthenium(II) Porphyrins Ru(P)(NO)(ONO). Multiple Pathways Involving Reactions of Intermediates with Nitric Oxide1Journal of the American Chemical Society, 1998
- Photosensitized decomposition of S‐nitrosothiols and 2‐methyl‐2‐nitrosopropane Possible use for site‐directed nitric oxide productionFEBS Letters, 1995
- Photochemical reaction pathways of ruthenium(II) complexes. III. Metal-to-ligand charge-transfer excitation of the pentaamminepyridineruthenium(II) cation and related speciesJournal of the American Chemical Society, 1972