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001-es BibID:	BIBFORM016457
Első szerző:	Bíró Linda (vegyész)
Cím:	Complex formation between Ru(eta(6)-p-cym)(H2O)(3) (2+) and (O,O) donor ligands with biological relevance in aqueous solution / Linda Bíró, Etelka Farkas, Péter Buglyó
Dátum:	2010
ISSN:	1477-9226
Megjegyzések:	The interaction between [Ru(eta(6)-p-cym)(H2O)(3)](2+) and (O,O) type chelators with different basicity of the donor atoms was studied using combined pH-potentiometric, H-1-NMR and ESI-TOF-MS techniques. The studied nine ligands are building blocks of reported complexes with antitumor activity or may model (O, O) donor serum components capable of interacting with the administered half-sandwich ruthenium(II) type drug. Composition and stability constants of the [Ru(eta(6)-p-cym)(O,O)Y] type species (Y: H2O or OH-) were determined (T = 25.0 degrees C; I = 0.20 M (KCl)) and the metal ion binding strengths of the ligands are discussed. It was found that ligands with two low basicity O donors (oxalic and cyclobutane-1,1-dicarboxylic acid) bind the metal ion at acidic conditions but are not able to prevent the hydrolysis at physiologically relevant conditions. Ligands with one low and one high basicity O donor (lactic and salicylic acid) are weak binders for Ru(eta(6)-p-cym)(H2O)(3)](2+). Pyrone or pyridinone based ligands are capable of binding the metal ion over a wide pH range and no hydrolysis product is detectable at pH = 7.4. The obtained speciation models may help in the rationalization of the biological activity of such complexes and provide a deeper insight into the solution behaviour of half-sandwich Ru(II) complexes with potential anticancer activity.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban anticancer complexes derivatives ruthenium hydrolysis catechol serum
Megjelenés:	Dalton Transactions. - 39 : 42 (2010), p. 10272-10278. -
További szerzők:	Farkas Etelka (1948-) (vegyész) Buglyó Péter (1965-) (vegyész)
Pályázati támogatás:	K76142 OTKA
Internet cím:	DOI Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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