File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1002/chem.200390143
- Scopus: eid_2-s2.0-0037451411
- PMID: 12645015
- WOS: WOS:000181817400002
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Structural, photophysical, and electrophosphorescent properties of platinum(II) complexes supported by tetradentate N2O2 chelates
Title | Structural, photophysical, and electrophosphorescent properties of platinum(II) complexes supported by tetradentate N2O2 chelates |
---|---|
Authors | |
Keywords | Charge transfer Electroluminescence N,O ligands Phosphorescence Platinum |
Issue Date | 2003 |
Publisher | Wiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/chemistry |
Citation | Chemistry - A European Journal, 2003, v. 9 n. 6, p. 1263-1272 How to Cite? |
Abstract | We present an examination of the structural and photophysical characteristics of [Pt(N2O2)] complexes bearing bis(phenoxy)diimine auxiliaries (diimine = 4,7-Ph2phen (1) and 4,4′-tBu2bpy (2)) that are tetradentate relatives of the quinolinolato (q) ligand. These neutral derivatives display high thermal stability (> 400 °C in N2). While the crystal lattice in 1 consists of (head-to-tail)-interacting dimers, molecules of 2 are arranged into infinitely stacked planar sheets with possible π-π interactions but no close Pt⋯Pt contacts. Complexes 1 and 2 exhibit moderately intense low-energy UV/Vis absorptions around λ=400-500 nm that undergo negative solvatochromic shifts. Both derivatives are highly luminescent in solution at 298 K with emission lifetimes in the ps range, and mixed 3[1→π*(diimine)] (l=lone pair/phenoxide) and 3[Pt(d)→π*(diimine)] charge-transfer states are tentatively assigned. The excited-state properties of 2 are also investigated by time-resolved absorption spectroscopy and by quenching experiments with pyridinium acceptors to estimate the excited-state redox potential. These emitters have been employed as electrophosphorescent dopants in multilayer OLEDs. Differences between the brightness, color, and overall performance of devices incorporating 1 and 2 are attributed to the influence of the diimine substituents. |
Persistent Identifier | http://hdl.handle.net/10722/167787 |
ISSN | 2023 Impact Factor: 3.9 2023 SCImago Journal Rankings: 1.058 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lin, YY | en_HK |
dc.contributor.author | Chan, SC | en_HK |
dc.contributor.author | Chan, MCW | en_HK |
dc.contributor.author | Hou, YJ | en_HK |
dc.contributor.author | Zhu, N | en_HK |
dc.contributor.author | Che, CM | en_HK |
dc.contributor.author | Liu, Y | en_HK |
dc.contributor.author | Wang, Y | en_HK |
dc.date.accessioned | 2012-10-08T03:11:35Z | - |
dc.date.available | 2012-10-08T03:11:35Z | - |
dc.date.issued | 2003 | en_HK |
dc.identifier.citation | Chemistry - A European Journal, 2003, v. 9 n. 6, p. 1263-1272 | en_HK |
dc.identifier.issn | 0947-6539 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/167787 | - |
dc.description.abstract | We present an examination of the structural and photophysical characteristics of [Pt(N2O2)] complexes bearing bis(phenoxy)diimine auxiliaries (diimine = 4,7-Ph2phen (1) and 4,4′-tBu2bpy (2)) that are tetradentate relatives of the quinolinolato (q) ligand. These neutral derivatives display high thermal stability (> 400 °C in N2). While the crystal lattice in 1 consists of (head-to-tail)-interacting dimers, molecules of 2 are arranged into infinitely stacked planar sheets with possible π-π interactions but no close Pt⋯Pt contacts. Complexes 1 and 2 exhibit moderately intense low-energy UV/Vis absorptions around λ=400-500 nm that undergo negative solvatochromic shifts. Both derivatives are highly luminescent in solution at 298 K with emission lifetimes in the ps range, and mixed 3[1→π*(diimine)] (l=lone pair/phenoxide) and 3[Pt(d)→π*(diimine)] charge-transfer states are tentatively assigned. The excited-state properties of 2 are also investigated by time-resolved absorption spectroscopy and by quenching experiments with pyridinium acceptors to estimate the excited-state redox potential. These emitters have been employed as electrophosphorescent dopants in multilayer OLEDs. Differences between the brightness, color, and overall performance of devices incorporating 1 and 2 are attributed to the influence of the diimine substituents. | en_HK |
dc.language | eng | en_US |
dc.publisher | Wiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/chemistry | en_HK |
dc.relation.ispartof | Chemistry - A European Journal | en_HK |
dc.subject | Charge transfer | en_HK |
dc.subject | Electroluminescence | en_HK |
dc.subject | N,O ligands | en_HK |
dc.subject | Phosphorescence | en_HK |
dc.subject | Platinum | en_HK |
dc.title | Structural, photophysical, and electrophosphorescent properties of platinum(II) complexes supported by tetradentate N2O2 chelates | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Zhu, N: nzhu@hkucc.hku.hk | en_HK |
dc.identifier.email | Che, CM: cmche@hku.hk | en_HK |
dc.identifier.authority | Zhu, N=rp00845 | en_HK |
dc.identifier.authority | Che, CM=rp00670 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1002/chem.200390143 | en_HK |
dc.identifier.pmid | 12645015 | - |
dc.identifier.scopus | eid_2-s2.0-0037451411 | en_HK |
dc.identifier.hkuros | 83818 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0037451411&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 9 | en_HK |
dc.identifier.issue | 6 | en_HK |
dc.identifier.spage | 1263 | en_HK |
dc.identifier.epage | 1272 | en_HK |
dc.identifier.isi | WOS:000181817400002 | - |
dc.publisher.place | Germany | en_HK |
dc.identifier.scopusauthorid | Lin, YY=7406585692 | en_HK |
dc.identifier.scopusauthorid | Chan, SC=7404256345 | en_HK |
dc.identifier.scopusauthorid | Chan, MCW=7402598116 | en_HK |
dc.identifier.scopusauthorid | Hou, YJ=7402198922 | en_HK |
dc.identifier.scopusauthorid | Zhu, N=7201449530 | en_HK |
dc.identifier.scopusauthorid | Che, CM=7102442791 | en_HK |
dc.identifier.scopusauthorid | Liu, Y=36012292400 | en_HK |
dc.identifier.scopusauthorid | Wang, Y=8637619000 | en_HK |
dc.identifier.issnl | 0947-6539 | - |