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- W2103681330 endingPage "267" @default.
- W2103681330 startingPage "256" @default.
- W2103681330 abstract "Compounds [RuII(bipy)(terpy)L](PF6)2 with bipy = 2,2'-bipyridine, terpy = 2,2':6',2-terpyridine, L = H2O, imidazole (imi), 4-methylimidazole, 2-methylimidazole, benzimidazole, 4,5-diphenylimidazole, indazole, pyrazole, 3-methylpyrazole have been synthesized and characterized by 1H NMR, ESI-MS and UV/Vis (in CH3CN and H2O). For L = H2O, imidazole, 4,5-diphenylimidazole and indazole the X-ray structures of the complexes have been determined with the crystal packing featuring only few intermolecular C-H...pi or pi-pi interactions due to the separating action of the PF6-anions. Complexes with L = imidazole and 4-methylimidazole exhibit a fluorescence emission with a maximum at 662 and 667 nm, respectively (lambdaexc= 475 nm, solvent CH3CN or H2O). The substitution of the aqua ligand in [Ru(bipy)(terpy)(H2O)]2+ in aqueous solution by imidazole to give [Ru(bipy)(terpy)(imi)]2+ is fastest at a pH of 8.5 (as followed by the increase in emission intensity). Coupling of the [Ru(bipy)(terpy)]2+ fragment to cytochrome c(Yeast iso-1) starting from the Ru-aqua complex was successful at 35 degrees C and pH 7.0 after 5 d under argon in the dark. The [Ru(bipy)(terpy)(cyt c)]-product was characterized by UV/Vis, emission and mass spectrometry. The location where the [Ru(bipy)(terpy)] complex was coupled to the protein was identified as His44 (corresponding to His39 in other numbering schemes) using digestion of the Ru-coupled protein by trypsin and analysis of the tryptic peptides by HPLC-high resolution MS." @default.
- W2103681330 created "2016-06-24" @default.
- W2103681330 creator A5005679679 @default.
- W2103681330 creator A5033474482 @default.
- W2103681330 creator A5056363084 @default.
- W2103681330 creator A5060411899 @default.
- W2103681330 creator A5077396200 @default.
- W2103681330 creator A5090644272 @default.
- W2103681330 date "2005-01-01" @default.
- W2103681330 modified "2023-10-10" @default.
- W2103681330 title "From model compounds to protein binding: syntheses, characterizations and fluorescence studies of [Ru<sup>II</sup>(bipy)(terpy)L]<sup>2+</sup>complexes (bipy = 2,2′-bipyridine; terpy = 2,2′:6′,2″-terpyridine; L = imidazole, pyrazole and derivatives, cytochrome c)" @default.
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