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Issue 11, 2012
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Control of pyrene fluorescence intensity by in situ addition of CO2 to an amidine/amine mixture or CO2 removal from an amidinium carbamate ionic liquid

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Abstract

Addition of CO2 to an equimolar amidine/amine mixture leads to formation of a switchable ionic liquid, an amidinium carbamate, and appearance of strong fluorescence by a solute, pyrene. Passing a ‘displacement gas’, N2, through the ionic liquid or heating it regenerates the amidine/amine mixture and quenches the fluorescence almost totally. No switching or appreciable fluorescence is found when an amidinium dithiocarbamate is the medium.

Graphical abstract: Control of pyrene fluorescence intensity by in situ addition of CO2 to an amidine/amine mixture or CO2 removal from an amidinium carbamate ionic liquid

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Publication details

The article was received on 26 Sep 2011, accepted on 28 Oct 2011 and first published on 24 Nov 2011


Article type: Communication
DOI: 10.1039/C1PP05312D
Photochem. Photobiol. Sci., 2012,11, 1642-1644

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    Control of pyrene fluorescence intensity by in situ addition of CO2 to an amidine/amine mixture or CO2 removal from an amidinium carbamate ionic liquid

    S. Abraham and R. G. Weiss, Photochem. Photobiol. Sci., 2012, 11, 1642
    DOI: 10.1039/C1PP05312D

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