Highly phosphorescent supramolecular hydrogels based on platinum emitters

Naveen Kumar Allampally; Michael Bredol; Cristian A Strassert; Luisa De Cola

doi:10.1002/chem.201403772

Highly phosphorescent supramolecular hydrogels based on platinum emitters

Chemistry. 2014 Dec 15;20(51):16863-8. doi: 10.1002/chem.201403772. Epub 2014 Oct 30.

Authors

Naveen Kumar Allampally¹, Michael Bredol, Cristian A Strassert, Luisa De Cola

Affiliation

¹ NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str.10, 48149 Münster (Germany); Center for Nanotechnology (CeNTech) and Physikalisches Institut, Westfälische Wilhelms-Universität Münster. Heisenbergstr. 11, 48149 Münster (Germany); Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg (Germany).

PMID: 25359275
DOI: 10.1002/chem.201403772

Abstract

We have synthesised a neutral, water-soluble, Pt(II) complex able to aggregate more efficiently in aqueous solutions than in organic solvents. The aggregates are luminescent and are not quenched by molecular oxygen. Further, we have prepared phosphorescent hydrogels utilising host-guest interactions between cyclodextrins and the tetraethylene glycol tails of the Pt(II) complex. The soft assemblies feature host-dependent emission properties.

Keywords: aggregation; host-guest systems; hydrogels; phosphorescence; platinum.