Dicopper(I) Paddle-Wheel Complexes with Thermally Activated Delayed Fluorescence Adjusted by Ancillary Ligands
A suite of paddle-wheel shaped [Cu2(PymPPh2)3(Lan)n](PF6)2 complexes showing efficient thermally activated delayed fluorescence (TADF) has been synthesized. In these complexes, Cu(I) ions are P,N-bridged by three diphenyl(2-pyrimidyl)phosphine (PymPPh2, L) ligands in a "head-to-tail" fashion, and one or both metals are also capped by the ancillary ligand (Lan = MeOH, Me2CO, MeCN, PhCN). At ambient temperature, the solid complexes emit TADF with the quantum yield of up to 85% and the lifetimes of from 9.6 to 27 μs. The ancillary ligands, whose orbitals negligibly contribute to the radiative 1(M + L + Lan)LCT state, remarkably adjust emission energies and ΔE(S1-T1) energy splitting magnitudes of the emitters obtained. Thus, depending on structure and/or number of the Lan molecules, the emission maxima vary from 500 to 563 nm, and the ΔE(S1-T1) gaps range 550-1100 cm-1. Such tunable TADF characteristics coupled with the excellent solubility and air-stability make the complexes presented to be promising TADF materials.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:59 |
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| Enthalten in: |
Inorganic chemistry - 59(2020), 15 vom: 03. Aug., Seite 10699-10706 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Artem'ev, Alexander V [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 14.08.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.inorgchem.0c01171 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM312636512 |
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| 100 | 1 | |a Artem'ev, Alexander V |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Dicopper(I) Paddle-Wheel Complexes with Thermally Activated Delayed Fluorescence Adjusted by Ancillary Ligands |
| 264 | 1 | |c 2020 | |
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| 500 | |a Date Revised 14.08.2020 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a A suite of paddle-wheel shaped [Cu2(PymPPh2)3(Lan)n](PF6)2 complexes showing efficient thermally activated delayed fluorescence (TADF) has been synthesized. In these complexes, Cu(I) ions are P,N-bridged by three diphenyl(2-pyrimidyl)phosphine (PymPPh2, L) ligands in a "head-to-tail" fashion, and one or both metals are also capped by the ancillary ligand (Lan = MeOH, Me2CO, MeCN, PhCN). At ambient temperature, the solid complexes emit TADF with the quantum yield of up to 85% and the lifetimes of from 9.6 to 27 μs. The ancillary ligands, whose orbitals negligibly contribute to the radiative 1(M + L + Lan)LCT state, remarkably adjust emission energies and ΔE(S1-T1) energy splitting magnitudes of the emitters obtained. Thus, depending on structure and/or number of the Lan molecules, the emission maxima vary from 500 to 563 nm, and the ΔE(S1-T1) gaps range 550-1100 cm-1. Such tunable TADF characteristics coupled with the excellent solubility and air-stability make the complexes presented to be promising TADF materials | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Davydova, Maria P |e verfasserin |4 aut | |
| 700 | 1 | |a Berezin, Alexey S |e verfasserin |4 aut | |
| 700 | 1 | |a Ryzhikov, Maxim R |e verfasserin |4 aut | |
| 700 | 1 | |a Samsonenko, Denis G |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Inorganic chemistry |d 1966 |g 59(2020), 15 vom: 03. Aug., Seite 10699-10706 |w (DE-627)NLM110650298 |x 1520-510X |7 nnns |
| 773 | 1 | 8 | |g volume:59 |g year:2020 |g number:15 |g day:03 |g month:08 |g pages:10699-10706 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1021/acs.inorgchem.0c01171 |3 Volltext |
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