کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1340769 | 979752 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Photoactive ruthenium nitrosyls derived from quinoline- and pyridine-based ligands: Accelerated photorelease of NO due to quinoline ligation Photoactive ruthenium nitrosyls derived from quinoline- and pyridine-based ligands: Accelerated photorelease of NO due to quinoline ligation](/preview/png/1340769.png)
The ruthenium nitrosyl [(PaPy2Q)Ru(NO)](BF4)2, derived from the quinoline-based ligand PaPy2QH (PaPy2QH = N,N-bis(2-pyridylmethyl)amine-N-ethyl-2-quinaldine-2-carboxamide; H = dissociable proton) has been synthesized and characterized by X-ray crystallography and spectroscopic techniques. This {Ru–NO}6 nitrosyl is soluble in aqueous media and stable under physiological conditions at pH 7. [(PaPy2Q)Ru(NO)]2+ releases NO rapidly upon exposure to low-intensity UV light (5 mW/cm2). The NO donor capacity of this nitrosyl (quantum yield = 0.20, λirr = 365 nm) is considerably higher than that of analogous nitrosyl derived from a polypyridyl ligand without the quinoline moiety.
The {Ru–NO}6 nitrosyl [(PaPy2Q)Ru(NO)](BF4)2 exhibits greater NO photolability (as detected by NO-electrode) compared to analogous nitrosyl [(PaPy3)Ru(NO)](BF4)2 due to the light-harvesting quinoline moiety in the ligand frame.Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 26, Issue 16, 10 October 2007, Pages 4713–4718