1446210-70-3Relevant articles and documents
A zinc-salophen/bile-acid conjugate receptor solubilized by CTABr micelles binds phosphate in water
Jurcek, Ondrej,Cametti, Massimo,Pontini, Marta,Kolehmainen, Erkki,Rissanen, Kari
, p. 4585 - 4590 (2013)
Receptor 1, composed of two deoxycholic acid moieties appended to a Zn-salophen complex, was prepared, characterized and tested for anion binding by 1H NMR and UV-vis spectroscopic techniques. While in polar DMSO, 1 is able to bind phosphate (K = ~700 M-1), the addition of water severely diminishes the association. In a 1: 9 water-DMSO mixture, the binding constant K is only ca. 20 M-1. Notably, in an aqueous solution of CTABr micelles (CTABr 10 mM, cmc = ~1 mM), the zinc-salophen conjugate 1, due to its two non-polar bile-acid moieties, becomes solubilized and, most importantly, it almost completely recovers its binding ability towards phosphate, displaying a remarkable affinity (K = ~450 M-1) in water. is