Jump to main content
Jump to site search
Publishing
Advanced

Issue 20, 2009
Previous Article Next Article

[Pt(mesBIAN)(tda)]: A near-infrared emitter and singlet oxygen sensitizer

Aaron A. Rachford,a  Fei Hua,a  Christopher J. Adamsb  and  Felix N. Castellano*a 
Author affiliations

* Corresponding authors

a Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, USA
E-mail: castell@bgnet.bgsu.edu
Fax: +1 419 372 9809
Tel: +1 419 372 7513

b School of Chemistry, University of Bristol, Bristol, UK

Abstract

The synthesis and subsequent photophysical investigation of [Pt(mesBIAN)(tda)], where mesBIAN is bis(mesitylimino)acenaphthene and tda is tolan-2,2′-diacetylide, reveal excited-state characteristics best described as triplet charge transfer (3CT) in nature upon visible light excitation. Large ground-state dipole moments are apparent as the absorption spectrum dramatically red-shifts with decreasing solvent polarity. The 3CT excited state is significantly lower in energy than the ligand-centered 3tda excited-state, as confirmed by steady-state and time-resolved techniques. Singlet oxygen sensitization studies demonstrate that 1O2 production occurs by diffusive quenching from the photo-excited 3CT state (ΦΔ = 0.24, λmax∼1270 nm) in oxygen-saturated dichloromethane.

Graphical abstract: [Pt(mesBIAN)(tda)]: A near-infrared emitter and singlet oxygen sensitizer

Back to tab navigation
Download options Please wait...

Supplementary files

Publication details

The article was received on 15 Oct 2008, accepted on 24 Dec 2008 and first published on 12 Feb 2009


Article type: Paper
DOI: 10.1039/B818177B
Citation: Dalton Trans., 2009,0, 3950-3954
  •   Request permissions

    [Pt(mesBIAN)(tda)]: A near-infrared emitter and singlet oxygen sensitizer

    A. A. Rachford, F. Hua, C. J. Adams and F. N. Castellano, Dalton Trans., 2009, 0, 3950
    DOI: 10.1039/B818177B

    If you are not the author of this article and you wish to reproduce material from it in a third party non-RSC publication you must formally request permission using RightsLink. Go to our Instructions for using RightsLink page for details.

    Authors contributing to RSC publications (journal articles, books or book chapters) do not need to formally request permission to reproduce material contained in this article provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      Reproduced from Ref. XX with permission from the Centre National de la Recherche Scientifique (CNRS) and The Royal Society of Chemistry.
    • For reproduction of material from PCCP:
      Reproduced from Ref. XX with permission from the PCCP Owner Societies.
    • For reproduction of material from PPS:
      Reproduced from Ref. XX with permission from the European Society for Photobiology, the European Photochemistry Association, and The Royal Society of Chemistry.
    • For reproduction of material from all other RSC journals and books:
      Reproduced from Ref. XX with permission from The Royal Society of Chemistry.

    If the material has been adapted instead of reproduced from the original RSC publication "Reproduced from" can be substituted with "Adapted from".

    In all cases the Ref. XX is the XXth reference in the list of references.

    If you are the author of this article you do not need to formally request permission to reproduce figures, diagrams etc. contained in this article in third party publications or in a thesis or dissertation provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Reproduced by permission of The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC
    • For reproduction of material from PCCP:
      [Original citation] - Reproduced by permission of the PCCP Owner Societies
    • For reproduction of material from PPS:
      [Original citation] - Reproduced by permission of The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC
    • For reproduction of material from all other RSC journals:
      [Original citation] - Reproduced by permission of The Royal Society of Chemistry

    If you are the author of this article you still need to obtain permission to reproduce the whole article in a third party publication with the exception of reproduction of the whole article in a thesis or dissertation.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements