Excited state properties of [Pd0(NHC)(quinone)]2 with NHC=1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene and quinone=1,4-naphthoquinone

Kunkely, Horst; Vogler, Arnd

doi:10.1016/j.jorganchem.2005.07.114

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…The complex was emissive at 77 K (l max = 564 nm) but not at r.t. where a photoredox decomposition initiated by the LLCT state took place. 60 The phosphine derivatives 46 were photoluminescent with energies of around 515-540 nm. The lifetime studied for complex 46b showed a value of 160 ns, suggesting that the emissive excited state had a triplet (Pdphosphine) 3 MLCT character.…”

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confidence: 99%

N-heterocyclic carbene metal complexes: photoluminescence and applications

2014

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This review covers the advances made in the synthesis of luminescent transition metal complexes containing N-heterocyclic carbene (NHC) ligands. The presence of a high field strength ligand such as an NHC in the complexes gives rise to high energy emissions, and consequently, to the desired blue colour needed for OLED applications. Furthermore, the great versatility of NHC ligands for structural modifications, together with the use of other ancillary ligands in the complex, provides numerous possibilities for the synthesis of phosphorescent materials, with emission colours over the entire visible spectra and potential future applications in fields such as photochemical water-splitting, chemosensors, dye-sensitised solar cells, oxygen sensors, and medicine.

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Section: +mentioning

confidence: 99%

N-heterocyclic carbene metal complexes: photoluminescence and applications

2014

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“…28 A dimeric palladium complex bridged by two quinone-type ligands and capped by an NHC was found to be non-emissive at room temperature and photochemically unstable. 29 Consequently, no Pd(0) complexes as of yet have been reported to be operational in a lighting device. Fig.…”

Section: Introductionmentioning

confidence: 99%