A new ion pair receptor fulfilling a dual function as a chromogenic molecular switch for F- and ratiometric selective recognition of HSO4(-)

Xiu-Ming Liu; Ya-Ping Li; Wei-Chao Song; Qiang Zhao; Xian-He Bu

doi:10.1016/j.talanta.2012.04.003

A new ion pair receptor fulfilling a dual function as a chromogenic molecular switch for F- and ratiometric selective recognition of HSO4(-)

Talanta. 2012 Aug 15:97:111-7. doi: 10.1016/j.talanta.2012.04.003. Epub 2012 Apr 24.

Authors

Xiu-Ming Liu¹, Ya-Ping Li, Wei-Chao Song, Qiang Zhao, Xian-He Bu

Affiliation

¹ Department of Chemistry and TKL of Metal- and Molecule-Based Material Chemistry, Nankai University, Tianjin 300071, China.

PMID: 22841054
DOI: 10.1016/j.talanta.2012.04.003

Abstract

A new ditopic ion pair receptor 1 containing two biindole moieties and a bis-benzocrown ether unit shows a remarkable color switching (ON- and -OFF) function induced by anion (F(-)) and cation (K(+)) recognition. The ditopic receptor 1 binds in a cooperative fashion to HSO(4)(-) in the presence of 1·K(+) and acts as a selective ditopic receptor to recognize ion pairs with a wavelength-ratiometric manner.

Publication types

Research Support, Non-U.S. Gov't