Forskningsoutput per år
Forskningsoutput per år
Kasper Skov Kjær, Nidhi Kaul, Om Prakash, Pavel Chábera, Nils W. Rosemann, Alireza Honarfar, Olga Gordivska, Lisa A. Fredin, Karl-Erik Bergquist, Lennart Häggström, Tore Ericsson, Linnea Lindh, Arkady Yartsev, Stenbjörn Styring, Ping Huang, Jens Uhlig, Jesper Bendix, Daniel Strand, Villy Sundström, Petter Persson
Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review
Iron’s abundance and rich coordination chemistry are potentially appealing features for photochemical applications. However, the photoexcitable charge-transfer (CT) states of most Fe complexes are limited by picosecond or sub-picosecond deactivation through low-lying metal centered (MC) states, resulting in inefficient electron transfer reactivity and complete lack of photoluminescence. Here we show that octahedral coordination of Fe(III) by two mono-anionic facial tris-carbene ligands can suppress such deactivation dramatically. The resulting complex [Fe(phtmeimb)2]+, where phtmeimb is [phenyl(tris(3-methylimidazol-1-ylidene))borate]-, exhibits strong, visible, room temperature photoluminescence with a 2.0 ns lifetime and 2% quantum yield via spin-allowed transition from a ligand-to-metal charge-transfer (2 LMCT) state to the ground state (2 GS). Reductive and oxidative electron transfer reactions were observed for the2 LMCT state of [Fe(phtmeimb)2]+ in bimolecular quenching studies with methylviologen and diphenylamine.
Originalspråk | engelska |
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Sidor (från-till) | 249-253 |
Tidskrift | Science |
Volym | 363 |
Nummer | 6424 |
Tidigt onlinedatum | 2018 nov. |
DOI | |
Status | Published - 2019 |
Forskningsoutput: Avhandling › Doktorsavhandling (sammanläggning)
Forskningsoutput: Avhandling › Doktorsavhandling (sammanläggning)
Forskningsoutput: Avhandling › Doktorsavhandling (sammanläggning)