Alkynyl bridged cyclometalated IrM clusters: impact of the heterometal in the photo- and electro-luminescence properties
We report two unprecedent alkynyl bridging cyclometalated clusters [Ir 2 M 2 (ppy) 4 (μ-C&z.tbd;CC 6 H 4 -OMe 3 ) 4 ] where M is Ag ( 2 ) and Cu ( 3 ), which display distinctive luminescence properties. While 2 features a green phosphorescence/electroluminescence nature located at the ppy ligand...
Gespeichert in:
| Veröffentlicht in: | Dalton transactions : an international journal of inorganic chemistry 2016-02, Vol.45 (8), p.3251-3255 |
|---|---|
| Hauptverfasser: | , , , , , , , |
| Format: | Artikel |
| Sprache: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | We report two unprecedent alkynyl bridging cyclometalated clusters [Ir
2
M
2
(ppy)
4
(μ-C&z.tbd;CC
6
H
4
-OMe
3
)
4
] where M is Ag (
2
) and Cu (
3
), which display distinctive luminescence properties. While
2
features a green phosphorescence/electroluminescence nature located at the ppy ligands (
3
LC),
3
shows an orange emission confined to the metals and alkynyl groups having a mixed
3
L′C/
3
L′MCT/
3
MMCT (L′ = alkynyl) nature.
The distinct photo- and electro-luminescence properties of clusters [Ir
2
M
2
(ppy)
4
(μ-C&z.tbd;CC
6
H
4
-OMe
3
)
4
] (M = Ag, Cu) provide an example of the role of the CCR groups in modulating metallophillic bonding in the T
1
state. |
|---|---|
| ISSN: | 1477-9226 1477-9234 |
| DOI: | 10.1039/c5dt04027b |