Meta-substituted Ru(II) rigid rods for sensitization of TiO(2)
(2009) In Journal of Photochemistry and Photobiology, A: Chemistry 206(2-3). p.155-163- Abstract (Swedish)
- Abstract in Undetermined
Ruthenium polypyridyl rigid-rod compounds with phenylene-ethynelene (OPE) spacers and an isophthalic acid (Ipa) binding group were synthesized and characterized for sensitization of nanocrystalline TiO(2) (anatase) thin films. Density functional theory predicted that the most stable structure oriented the isophthalic group about 45 degrees from normal to the TiO(2) surface. Comparative experimental studies of meta- and para-isomers revealed small changes in the ground state absorption spectra and very similar excited state and redox properties. The excited state injection yields (inj = 0.15 +/- 0.03)into nanocrystalline TiO(2) and the subsequent charge recombination rates were found to be... (More) - Abstract in Undetermined
Ruthenium polypyridyl rigid-rod compounds with phenylene-ethynelene (OPE) spacers and an isophthalic acid (Ipa) binding group were synthesized and characterized for sensitization of nanocrystalline TiO(2) (anatase) thin films. Density functional theory predicted that the most stable structure oriented the isophthalic group about 45 degrees from normal to the TiO(2) surface. Comparative experimental studies of meta- and para-isomers revealed small changes in the ground state absorption spectra and very similar excited state and redox properties. The excited state injection yields (inj = 0.15 +/- 0.03)into nanocrystalline TiO(2) and the subsequent charge recombination rates were found to be insensitive to the isomer utilized. Meta-substitution enabled the synthesis of sensitizers with two Ru(II) sensitizers that displayed enhanced sunlight absorption relative to the monomeric compound. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1457579
- author
- Abrahamsson, Maria ; Meyer, G. J. ; Persson, Petter LU ; Taratula, O. and Galoppini, E.
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ru compounds, MLCT excited states, Titanium dioxide, DFT calculations, Meta-substitution
- in
- Journal of Photochemistry and Photobiology, A: Chemistry
- volume
- 206
- issue
- 2-3
- pages
- 155 - 163
- publisher
- Elsevier
- external identifiers
-
- wos:000269471200008
- scopus:68649109172
- ISSN
- 1873-2666
- DOI
- 10.1016/j.jphotochem.2009.06.002
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- 5c9304ec-b8f2-452e-a3f3-12c5d2eb4cc7 (old id 1457579)
- date added to LUP
- 2016-04-01 14:36:11
- date last changed
- 2022-01-28 01:30:28
@article{5c9304ec-b8f2-452e-a3f3-12c5d2eb4cc7,
abstract = {{<b>Abstract in Undetermined</b><br/><br>
Ruthenium polypyridyl rigid-rod compounds with phenylene-ethynelene (OPE) spacers and an isophthalic acid (Ipa) binding group were synthesized and characterized for sensitization of nanocrystalline TiO(2) (anatase) thin films. Density functional theory predicted that the most stable structure oriented the isophthalic group about 45 degrees from normal to the TiO(2) surface. Comparative experimental studies of meta- and para-isomers revealed small changes in the ground state absorption spectra and very similar excited state and redox properties. The excited state injection yields (inj = 0.15 +/- 0.03)into nanocrystalline TiO(2) and the subsequent charge recombination rates were found to be insensitive to the isomer utilized. Meta-substitution enabled the synthesis of sensitizers with two Ru(II) sensitizers that displayed enhanced sunlight absorption relative to the monomeric compound.}},
author = {{Abrahamsson, Maria and Meyer, G. J. and Persson, Petter and Taratula, O. and Galoppini, E.}},
issn = {{1873-2666}},
keywords = {{Ru compounds; MLCT excited states; Titanium dioxide; DFT calculations; Meta-substitution}},
language = {{eng}},
number = {{2-3}},
pages = {{155--163}},
publisher = {{Elsevier}},
series = {{Journal of Photochemistry and Photobiology, A: Chemistry}},
title = {{Meta-substituted Ru(II) rigid rods for sensitization of TiO(2)}},
url = {{http://dx.doi.org/10.1016/j.jphotochem.2009.06.002}},
doi = {{10.1016/j.jphotochem.2009.06.002}},
volume = {{206}},
year = {{2009}},
}