Bidirectional and colorimetric recognition of sodium and potassium ions

Org Lett. 2006 Dec 7;8(25):5797-800. doi: 10.1021/ol062351+.

Abstract

Host 1 based on the phenolphthalein skeleton and two crown ether moieties demonstrated opposite behaviors toward sodium and potassium cations caused by bidirectional complexation. [reaction: see text]

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Colorimetry
  • Crown Ethers / chemistry
  • Indicators and Reagents
  • Phenolphthalein
  • Potassium / chemistry*
  • Sodium / chemistry*
  • Spectrophotometry, Infrared
  • Spectrophotometry, Ultraviolet
  • Temperature

Substances

  • Crown Ethers
  • Indicators and Reagents
  • Phenolphthalein
  • Sodium
  • Potassium