« Previous AbstractToward a microfabricated preconcentrator-focuser for a wearable micro-scale gas chromatograph    Next AbstractSome nutritional characteristics of predominant culturable ruminal bacteria »

Nat Commun

Title:		A rapidly-reversible absorptive and emissive vapochromic Pt(II) pincer-based chemical sensor
Author(s):		Bryant MJ; Skelton JM; Hatcher LE; Stubbs C; Madrid E; Pallipurath AR; Thomas LH; Woodall CH; Christensen J; Fuertes S; Robinson TP; Beavers CM; Teat SJ; Warren MR; Pradaux-Caggiano F; Walsh A; Marken F; Carbery DR; Parker SC; McKeown NB; Malpass-Evans R; Carta M; Raithby PR;
Address:		"Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK. The Cambridge Crystallographic Data Centre, 12 Union Rd, Cambridge, CB2 1EZ, UK. Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0FA, UK. Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA. Beamline I19, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK. Global E3 Institute and Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, Korea. EastChem, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK. 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"
Journal Title:		Nat Commun
Year:		2017
Volume:		20171127
Issue:		1
Page Number:		1800 -
DOI:		10.1038/s41467-017-01941-2
ISSN/ISBN:		2041-1723 (Electronic) 2041-1723 (Linking)
Abstract:		"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"
Keywords:
Notes:		"PubMed-not-MEDLINEBryant, M J Skelton, J M Hatcher, L E Stubbs, C Madrid, E Pallipurath, A R Thomas, L H Woodall, C H Christensen, J Fuertes, S Robinson, T P Beavers, C M Teat, S J Warren, M R Pradaux-Caggiano, F Walsh, A Marken, F Carbery, D R Parker, S C McKeown, N B Malpass-Evans, R Carta, M Raithby, P R eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2017/11/28 Nat Commun. 2017 Nov 27; 8(1):1800. doi: 10.1038/s41467-017-01941-2"