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

Tarkeshwar Gupta; Milko E. Van Der Boom

doi:10.1021/ja062538w

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

Tarkeshwar Gupta, Milko E. Van Der Boom

Weizmann Institute of Science, Israel

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

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.

Original language	English
Pages (from-to)	8400-8401
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	26
DOIs	https://doi.org/10.1021/ja062538w
Publication status	Published - Jul 5 2006

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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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.",

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