File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Direct Observation of the Triplet Excited States and Dynamics of Platinum(II)-Tetraphenylethylene Complexes by Time-Resolved Transient Absorption Spectroscopy

TitleDirect Observation of the Triplet Excited States and Dynamics of Platinum(II)-Tetraphenylethylene Complexes by Time-Resolved Transient Absorption Spectroscopy
Authors
Issue Date2021
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jpccck/
Citation
The Journal of Physical Chemistry C, 2021, v. 125 n. 21, p. 11432-11439 How to Cite?
AbstractTetraphenylethylene (TPE) is one of the most widely utilized luminogens in aggregation-induced emission research areas and is employed to cooperate with Pt(II) complexes to build supramolecular self-assemblies and light-emitting materials. However, little appears to be known about the underlying excited states dynamics of such Pt(II)-TPE materials to date. In this work, we synthesized TPE containing Pt(II) acetylide complexes to study the photophysical properties of these complexes by employing resonance Raman and time-resolved transient absorption spectroscopies. The photophysical dynamical evolutions of TPE containing Pt(II) acetylide complexes and the effects of TPE on the lifetimes of triplet excited states are discussed. The time-resolved transient absorption spectroscopic measurements reveal that two different triplet metal-to-ligand charger transfer [3MLCT dπ(Pt) → π*(tpy/bpy) and 3MLCT dπ(Pt) → π*(TPE)] excited states are observed directly. Significantly, the 3MLCT [dπ(Pt) → π*(TPE)] excited state lifetimes are considerably short due to the intramolecular rotation of TPE that speeds up the nonradiative decay of the corresponding triplet excited states.
Persistent Identifierhttp://hdl.handle.net/10722/300915
ISSN
2023 Impact Factor: 3.3
2023 SCImago Journal Rankings: 0.957
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLIANG, R-
dc.contributor.authorXiong, W-
dc.contributor.authorBAI, X-
dc.contributor.authorDu, L-
dc.contributor.authorPhillips, DL-
dc.date.accessioned2021-07-06T03:11:59Z-
dc.date.available2021-07-06T03:11:59Z-
dc.date.issued2021-
dc.identifier.citationThe Journal of Physical Chemistry C, 2021, v. 125 n. 21, p. 11432-11439-
dc.identifier.issn1932-7447-
dc.identifier.urihttp://hdl.handle.net/10722/300915-
dc.description.abstractTetraphenylethylene (TPE) is one of the most widely utilized luminogens in aggregation-induced emission research areas and is employed to cooperate with Pt(II) complexes to build supramolecular self-assemblies and light-emitting materials. However, little appears to be known about the underlying excited states dynamics of such Pt(II)-TPE materials to date. In this work, we synthesized TPE containing Pt(II) acetylide complexes to study the photophysical properties of these complexes by employing resonance Raman and time-resolved transient absorption spectroscopies. The photophysical dynamical evolutions of TPE containing Pt(II) acetylide complexes and the effects of TPE on the lifetimes of triplet excited states are discussed. The time-resolved transient absorption spectroscopic measurements reveal that two different triplet metal-to-ligand charger transfer [3MLCT dπ(Pt) → π*(tpy/bpy) and 3MLCT dπ(Pt) → π*(TPE)] excited states are observed directly. Significantly, the 3MLCT [dπ(Pt) → π*(TPE)] excited state lifetimes are considerably short due to the intramolecular rotation of TPE that speeds up the nonradiative decay of the corresponding triplet excited states.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jpccck/-
dc.relation.ispartofThe Journal of Physical Chemistry C-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.titleDirect Observation of the Triplet Excited States and Dynamics of Platinum(II)-Tetraphenylethylene Complexes by Time-Resolved Transient Absorption Spectroscopy-
dc.typeArticle-
dc.identifier.emailXiong, W: xwj0917@hku.hk-
dc.identifier.emailDu, L: ailleen@hku.hk-
dc.identifier.emailPhillips, DL: phillips@hku.hk-
dc.identifier.authorityPhillips, DL=rp00770-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.jpcc.0c10548-
dc.identifier.scopuseid_2-s2.0-85108123398-
dc.identifier.hkuros323190-
dc.identifier.volume125-
dc.identifier.issue21-
dc.identifier.spage11432-
dc.identifier.epage11439-
dc.identifier.isiWOS:000661114000014-
dc.publisher.placeUnited States-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats