Optical sensing of parts per million levels of water in organic solvents using redox-active osmium chromophore-based monolayers

J Am Chem Soc. 2006 Jul 5;128(26):8400-1. doi: 10.1021/ja062538w.

Abstract

Optical sensing of parts per million (ppm)-levels of H2O (10-300 ppm) in an organic solvent with robust, osmium chromophore-based monolayers is demonstrated. The H2O-induced reduction of the covalently bound osmium(III) complex is fully reversible and can be readily monitored by UV/vis absorption spectroscopy. The thermally robust sensor can be reactivated chemically within 3 min.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Furans / chemistry*
  • Membranes, Artificial*
  • Molecular Structure
  • Optics and Photonics*
  • Organometallic Compounds / chemistry*
  • Osmium / chemistry*
  • Oxidation-Reduction
  • Solvents / chemistry
  • Surface Properties
  • Temperature
  • Time Factors
  • Water / analysis*
  • Water / chemistry

Substances

  • Furans
  • Membranes, Artificial
  • Organometallic Compounds
  • Solvents
  • Water
  • Osmium
  • tetrahydrofuran