title: Highly selective recognition on enatioselective of R(+) and S(-)-1,1-Bi(2-naphthol) using of Eu(dap)3 complex as photo probe.
abstract: The chiral recognition phenomenon was observed in enantioselective and excited-state energy transfer processes. Based on bimolecular luminescence quenching kinetics for a system containing chiral molecules, the quenching efficiency was evaluated by Stern-Volmer equation for a system containing a chiral R(+) and S(-) resolved quencher species. The utility of this methodology is confirmed by examining the enantio-selective excited-state quenching between Eu(dpa)(3) complex (where dpa = pyridine-2,6-dicarboxylate) acting as the energy donor to R(+)-1,1-Bi(2-Naphthol) and S(-)-1,1-Bi(2-naphthol) as the energy acceptor was studied in solution. The results of this study confirm the utility of luminescence measurements as a probe of chiral discriminatory behavior.
authors.affiliation: Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt. esambakir99@yahoo.com
authors.forename: Esam
authors.initials: E
authors.lastname: Bakir
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry*; D008163:Luminescent Measurements; D009284:Naphthols / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: C575374:Eu(pyridine-2,6-dicarboxylate)3; D005456:Fluorescent Dyes; D009284:Naphthols; D009942:Organometallic Compounds; C412332:1,1'-bi-2-naphthol