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Issue 48, 2017
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Mixed Cu(i)/Au(i) coordination polymers as reversible turn-on vapoluminescent sensors for volatile thioethers

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Abstract

Vapour-phase thioethers play an important role in a wide number of fields, including plant biology, chemical weapon disposal, and brewing but few sensor materials are known. The emissive coordination polymer Cu1/2Au1/2CN does not react with vapour phase dimethyl sulphide (DMS) or diethyl sulphide (DES) despite the independent synthesis of emissive [Cu1/2Au1/2CN]2(DMS) and [Cu1/2Au1/2CN]2(DES) from their constituent components in solution. However, the doped Cu2/3Au1/3CN rapidly reacts in the solid state with both of these vapour phase thioethers reversibly, with a change in emission from 380/560 nm to 460 nm (DMS) or 420 nm (DES), illustrating that doping the inactive parent Cu1/2Au1/2CN with Cu(I) generates an active sensor material. This response can be thermally cycled with little to no loss in functionality. [Cu1/2Au1/2CN]2(DMS), [Cu2/3Au1/3CN]2(DMS), and [Cu2/3Au1/3CN]2(DES) were structurally characterized as 3-D network structures supported by aurophilic interactions.

Graphical abstract: Mixed Cu(i)/Au(i) coordination polymers as reversible turn-on vapoluminescent sensors for volatile thioethers

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Supplementary files

Article information


Submitted
03 May 2017
Accepted
24 May 2017
First published
01 Jun 2017

Chem. Commun., 2017,53, 6500-6503
Article type
Communication

Mixed Cu(I)/Au(I) coordination polymers as reversible turn-on vapoluminescent sensors for volatile thioethers

B. R. Varju, J. S. Ovens and D. B. Leznoff, Chem. Commun., 2017, 53, 6500
DOI: 10.1039/C7CC03428H

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