Strongly coloured thiocyanate frameworks with perovskite-analogue structures.

Autor: Cliffe MJ; Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , UK . Email: mjc222@cam.ac.uk ; Email: cpg27@cam.ac.uk., Keyzer EN; Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , UK . Email: mjc222@cam.ac.uk ; Email: cpg27@cam.ac.uk., Dunstan MT; Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , UK . Email: mjc222@cam.ac.uk ; Email: cpg27@cam.ac.uk., Ahmad S; Institute for Manufacturing , Department of Engineering , University of Cambridge , 17 Charles Babbage Road , Cambridge CB3 0FS , UK., De Volder MFL; Institute for Manufacturing , Department of Engineering , University of Cambridge , 17 Charles Babbage Road , Cambridge CB3 0FS , UK., Deschler F; Department of Physics , University of Cambridge , JJ Thomson Ave , Cambridge CB3 0HE , UK., Morris AJ; School of Metallurgy and Materials , University of Birmingham , Edgbaston , Birmingham , B15 2TT , UK., Grey CP; Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , UK . Email: mjc222@cam.ac.uk ; Email: cpg27@cam.ac.uk.
Jazyk: angličtina
Zdroj: Chemical science [Chem Sci] 2018 Oct 26; Vol. 10 (3), pp. 793-801. Date of Electronic Publication: 2018 Oct 26 (Print Publication: 2019).
DOI: 10.1039/c8sc04082f
Abstrakt: We report the first examples of thiocyanate-based analogues of the cyanide Prussian blue compounds, M III [Bi(SCN) 6 ], M = Fe, Cr, Sc. These compounds adopt the primitive cubic pcu topology and show strict cation order. Optical absorption measurements show these compounds have band gaps within the visible and near IR region, suggesting that they may be useful for applications where light harvesting is key, such as photocatalysis. We also show that Cr[Bi(SCN) 6 ] can reversibly uptake water into its framework structure pointing towards the possibility of using these frameworks for host/guest chemistry.
Databáze: MEDLINE