Estimation of binding constants of associates of Ru(II) and Fe(II) polypyridyl complexes with single-isomer sulfated cyclodextrins by capillary electrophoresis

0493506 - ÚOCHB 2019 CZ eng C - Conference Paper (international conference)
Sázelová, Petra - Koval, Dušan - Severa, Lukáš - Teplý, Filip - Kašička, Václav
Estimation of binding constants of associates of Ru(II) and Fe(II) polypyridyl complexes with single-isomer sulfated cyclodextrins by capillary electrophoresis.
Advances in Chromatography and Electrophoresis & Chiranal 2018. Olomouc: Palacký University, 2018 - (Bednář, P.; Cechová, M.; Kučera, L.; Kurka, O.), s. 118-119
[Advances in Chromatography and Electrophoresis & Chiranal 2018. Olomouc (CZ), 29.01.2018-01.02.2018]
R&D Projects: GA ČR(CZ) GA15-01948S; GA ČR(CZ) GA17-10832S
Institutional support: RVO:61388963
Keywords : polypyridyl complexes * stability constant * capillary electrophoresis
OECD category: Analytical chemistry

Capillary electrophoresis (CE) was applied for enantioseparations of [Ru(bpy)3]2+, [Ru(phen) 3]2+ and [Fe(phen) 3]2+ complexes and for the estimation of binding constants of their associates with selected single-isomer sulfated cyclodextrins (SCDs). The apparent binding constants of the complexes of [Ru(bpy)3]2+, [Ru(phen)3]2+, and [Fe(phen)3]2+ enantiomers with the above SCDs were determined from the dependence of their effective electrophoretic mobilities on the concentration of the SCDs in the background electrolyte. Calculated apparent binding constants were found to be smaller than those obtained for randomly sulfated SCDs.
Permanent Link: http://hdl.handle.net/11104/0286865