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

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 10⁴ cycles, and flexible microporous polymer membranes incorporating microcrystals of the complex show identical vapochromic behaviour. The rapid vapo

SUBMITTER: Bryant MJ 

PROVIDER: S-EPMC5702612 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature