NMR and luminescence binding studies of ytterbium, thulium, and europium macrocyclic complexes with phosphorus(V) oxy anions

Atkinson, P.; Bretonniere, Y.; Parker, D.; Muller, G.

Abstract

The binding of a series of phosphate anions to coordinatively unsaturated macrocyclic complexes of Yb, Tm, and Eu was studied by H-1-NMR, emission and circularly polarized luminescence (CPL) spectroscopy. Each ternary adduct was distinguished by its spectral profile. With O-phosphorylated amino acids and peptides, chemoselective ligation of the phosphate moiety was favored by Eu over chelation involving the terminal amino group, which was competitive for Tm and Yb. A preference for binding O-phosphono-L-tyrosine sites was found with various Eu complexes, and was signalled by ratiometric changes in metal-based emission and CPL spectra.

Citation

Atkinson, P., Bretonniere, Y., Parker, D., & Muller, G. (2005). NMR and luminescence binding studies of ytterbium, thulium, and europium macrocyclic complexes with phosphorus(V) oxy anions. Helvetica Chimica Acta, 88(3), 391-405

• Journal Article Type: Article
• Publication Date: 2005
• Journal: Helvetica Chimica Acta
• Print ISSN: 0018-019X
• Electronic ISSN: 1522-2675
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 88
• Issue: 3
• Pages: 391-405
• Public URL: https://durham-repository.worktribe.com/output/1571659