Abstract

The series of nitrosyl complexes cis-[RuL(bpy) 2NO] 3+ (bpy=bipyridine; L=pyridine, 4-picoline, 4-acetylpyridine) were prepared and studied by laser plash-photolysis. All the studied complexes showed nitric oxide (NO) release under light irradiation at 355 nm account by NO measured made by a NO sensor. The quantum yields for NO release was determined with a laser flash-photolysis apparatus (Continuum Q-switched Nd-YAG laser). The major product of the irradiation of cis-[RuL(bpy) 2(NO)] 3+ is an intermediate which was suggested to be cis-[Ru IIIL(bpy) 2(NO )] 3+ that in aqueous solution release NO to produce cis-[RuL(bpy) 2(OH)] 2+.

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