Enantiopure cycloplatinated pentahelicenic N-heterocyclic carbenic complexes that display long-lived circularly polarized phosphorescence

Kundu, Debsouri; del Rio, Natalia; Cordier, Marie; Vanthuyne, Nicolas; Puttock, Emma V.; Meskers, Stefan C. J.; Williams, J. A. Gareth; Srebro-Hooper, Monika; Crassous, Jeanne

Abstract

The preparation of the first enantiopure cycloplatinated complexes bearing a bidentate, helicenic N-heterocyclic carbene and a diketonate ancillary ligand is presented, along with their structural and spectroscopic characterization based on both experimental and computational studies. The systems exhibit long-lived circularly polarized phosphorescence in solution and in doped films at room temperature, and also in a frozen glass at 77 K, with dissymmetry factor glum values ≥10−3 in the former and around 10−2 in the latter.

Citation

Kundu, D., del Rio, N., Cordier, M., Vanthuyne, N., Puttock, E. V., Meskers, S. C. J., …Crassous, J. (2023). Enantiopure cycloplatinated pentahelicenic N-heterocyclic carbenic complexes that display long-lived circularly polarized phosphorescence. Dalton Transactions, 52(19), 6484-6493. https://doi.org/10.1039/d3dt00577a

• Journal Article Type: Article
• Acceptance Date: Apr 16, 2023
• Online Publication Date: Apr 18, 2023
• Publication Date: 2023
• Deposit Date: Nov 7, 2023
• Publicly Available Date: Nov 7, 2023
• Journal: Dalton Transactions
• Print ISSN: 1477-9226
• Electronic ISSN: 1477-9234
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 52
• Issue: 19
• Pages: 6484-6493
• DOI: https://doi.org/10.1039/d3dt00577a
• Public URL: https://durham-repository.worktribe.com/output/1900277