A rapidly-reversible absorptive and emissive vapochromic Pt(II) pincer-based chemical sensor.

Autor: Bryant MJ; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.; The Cambridge Crystallographic Data Centre, 12 Union Rd, Cambridge, CB2 1EZ, UK., Skelton JM; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Hatcher LE; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.; Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0FA, UK., Stubbs C; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Madrid E; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Pallipurath AR; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Thomas LH; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Woodall CH; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Christensen J; Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0FA, UK., Fuertes S; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Robinson TP; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Beavers CM; Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA., Teat SJ; Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA., Warren MR; Beamline I19, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK., Pradaux-Caggiano F; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Walsh A; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.; Global E3 Institute and Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, Korea., Marken F; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Carbery DR; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., Parker SC; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK., McKeown NB; EastChem, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK., Malpass-Evans R; EastChem, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK., Carta M; EastChem, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK., Raithby PR; Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK. p.r.raithby@bath.ac.uk.; Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0FA, UK. p.r.raithby@bath.ac.uk.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2017 Nov 27; Vol. 8 (1), pp. 1800. Date of Electronic Publication: 2017 Nov 27.
DOI: 10.1038/s41467-017-01941-2
Abstrakt: Selective, robust and cost-effective chemical sensors for detecting small volatile-organic compounds (VOCs) have widespread applications in industry, healthcare and environmental monitoring. Here we design a Pt(II) pincer-type material with selective absorptive and emissive responses to methanol and water. The yellow anhydrous form converts reversibly on a subsecond timescale to a red hydrate in the presence of parts-per-thousand levels of atmospheric water vapour. Exposure to methanol induces a similarly-rapid and reversible colour change to a blue methanol solvate. Stable smart coatings on glass demonstrate robust switching over 10 4 cycles, and flexible microporous polymer membranes incorporating microcrystals of the complex show identical vapochromic behaviour. The rapid vapochromic response can be rationalised from the crystal structure, and in combination with quantum-chemical modelling, we provide a complete microscopic picture of the switching mechanism. We discuss how this multiscale design approach can be used to obtain new compounds with tailored VOC selectivity and spectral responses.
Databáze: MEDLINE