FTIR sensing of inhomogeneous systems using immobilized organometalcarbonyl probe groups

Creaser, Colin S., Hutchinson, William E. and Stephenson, G. Richard ORCID: https://orcid.org/0000-0003-1487-9178 (2001) FTIR sensing of inhomogeneous systems using immobilized organometalcarbonyl probe groups. The Analyst, 126 (5). pp. 647-651. ISSN 0003-2654

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Tricarbonyl(eta (5)-cyclohexadienyl)iron(0) and dicarbonyl(triphenylphosphine)(eta (5)-cyclo-hexadienyl)iron(0) were derivatized by attachment of an aminopropylsilyl link and covalently attached to fumed silica particles. The fumed silica was coated onto the ZnSe element of an attenuated total reflection (ATR) cell for Fourier transform infrared (FTIR) spectroscopic analysis. The immobilized organometalcarbonyl probe groups are shown to retain their capacity to function as a key element of a molecular sensor assembly and the nu (CO) bands of the two probe groups were interrogated to calibrate the responses for 0-5% levels of dodecane in cyclohexanol to within +/-0.1%. The potential for dual sensing is described and the simultaneous monitoring of two discrete regions of a dynamically varying inhomogeneous system is reported for the determination of dodecane in cyclohexanol as solutions mix across a permeable barrier in the ATR cell.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
UEA Research Groups: Faculty of Science > Research Groups > Chemistry of Materials and Catalysis
Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017)
Depositing User: Rachel Smith
Date Deposited: 08 Jun 2011 11:25
Last Modified: 11 Aug 2023 12:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/31998
DOI: 10.1039/B101166I

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