Abstract
The discovery of the highly NIR-luminescent molecular ruby [Cr(ddpd)2]3+ (ddpd = N,N′-dimethyl-N,N′-dipyridin-2-ylpyridine-2,6-diamine) has been a milestone in the development of earth-abundant luminophors and has led to important new impulses in the field of spin-flip emitters. Its favourable optical properties such as a high photoluminescence quantum yield and long excited state lifetime are traced back to a remarkable excited state landscape which has been investigated in great detail. This article summarises the results of these studies with the aim to create a coherent picture of the excited state ordering and the ultrafast as well as long-timescale dynamics. Additional experimental data is provided to fill in gaps left by previous reports.
| Original language | English |
|---|---|
| Pages (from-to) | 6519-6525 |
| Number of pages | 7 |
| Journal | Dalton Transactions |
| Volume | 51 |
| Issue number | 17 |
| Early online date | 5 Apr 2022 |
| DOIs | |
| Publication status | Published - 7 May 2022 |
Bibliographical note
Funding Information:The authors thank Dr Johannes Hunger for his support in this project and Dr Christoph Förster for constructive criticism of the manuscript. Financial support from the Deutsche Forschungsgemeinschaft [DFG, Priority Program SPP 2102 “Light-controlled reactivity of metal complexes” (HE 2778/13-1)] is gratefully acknowledged. We thank the DFG for grant INST 247/1018-1 FUGG to K. H.; W. R. K. is grateful for a Kekulé scholarship of the Fonds der Chemischen Industrie.
Publisher Copyright:
© 2022 The Royal Society of Chemistry.
Funding
The authors thank Dr Johannes Hunger for his support in this project and Dr Christoph Förster for constructive criticism of the manuscript. Financial support from the Deutsche Forschungsgemeinschaft [DFG, Priority Program SPP 2102 “Light-controlled reactivity of metal complexes” (HE 2778/13-1)] is gratefully acknowledged. We thank the DFG for grant INST 247/1018-1 FUGG to K. H.; W. R. K. is grateful for a Kekulé scholarship of the Fonds der Chemischen Industrie.