Ultrafast singlet energy transfer competes with intersystem crossing in a multi-center transition metal polypyridine complex
Andersson, Johan LU ; Puntoriero, F ; Serroni, S ; Yartsev, Arkady LU
; Pascher, Torbjörn
LU
; Polivka, Tomas
LU
; Campagna, S
and Sundström, Villy
LU
(2004)
In Chemical Physics Letters
386(4-6).
p.336-341
- Abstract
- Transition metal polypyridine complexes are finding widespread applications within many areas of chemistry. For their light-induced processes, the generally accepted picture is that all function emanates from triplet states because the singlet states initially prepared by light absorption are depopulated via intersystem crossing on the 100-fs time scale, before they are significantly involved in chemical reactions. Here we show that this is not always true. With ultrafast spectroscopy applied to a (ruthenium)(3)-osmium complex we show that transition metal polypyridine complexes can be designed where energy transfer between excited singlet states located on different metal centers efficiently competes with intersystem crossing, thus... (More)
- Transition metal polypyridine complexes are finding widespread applications within many areas of chemistry. For their light-induced processes, the generally accepted picture is that all function emanates from triplet states because the singlet states initially prepared by light absorption are depopulated via intersystem crossing on the 100-fs time scale, before they are significantly involved in chemical reactions. Here we show that this is not always true. With ultrafast spectroscopy applied to a (ruthenium)(3)-osmium complex we show that transition metal polypyridine complexes can be designed where energy transfer between excited singlet states located on different metal centers efficiently competes with intersystem crossing, thus decreasing population of the lower-lying triplet states and concomitant energy loss. (C) 2004 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/139111
- author
- Andersson, Johan
LU
; Puntoriero, F
; Serroni, S
; Yartsev, Arkady
LU
; Pascher, Torbjörn
LU
; Polivka, Tomas
LU
; Campagna, S
and Sundström, Villy
LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Chemical Physics Letters
- volume
- 386
- issue
- 4-6
- pages
- 336 - 341
- publisher
- Elsevier
- external identifiers
-
- wos:000220124700021
- scopus:1442360836
- ISSN
- 0009-2614
- DOI
- 10.1016/j.cplett.2004.01.081
- 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
- ec309551-ed3d-46f5-98b0-c829a40f1226 (old id 139111)
- date added to LUP
- 2016-04-01 16:52:58
- date last changed
- 2022-01-28 22:50:19
@article{ec309551-ed3d-46f5-98b0-c829a40f1226,
abstract = {{Transition metal polypyridine complexes are finding widespread applications within many areas of chemistry. For their light-induced processes, the generally accepted picture is that all function emanates from triplet states because the singlet states initially prepared by light absorption are depopulated via intersystem crossing on the 100-fs time scale, before they are significantly involved in chemical reactions. Here we show that this is not always true. With ultrafast spectroscopy applied to a (ruthenium)(3)-osmium complex we show that transition metal polypyridine complexes can be designed where energy transfer between excited singlet states located on different metal centers efficiently competes with intersystem crossing, thus decreasing population of the lower-lying triplet states and concomitant energy loss. (C) 2004 Elsevier B.V. All rights reserved.}},
author = {{Andersson, Johan and Puntoriero, F and Serroni, S and Yartsev, Arkady and Pascher, Torbjörn and Polivka, Tomas and Campagna, S and Sundström, Villy}},
issn = {{0009-2614}},
language = {{eng}},
number = {{4-6}},
pages = {{336--341}},
publisher = {{Elsevier}},
series = {{Chemical Physics Letters}},
title = {{Ultrafast singlet energy transfer competes with intersystem crossing in a multi-center transition metal polypyridine complex}},
url = {{http://dx.doi.org/10.1016/j.cplett.2004.01.081}},
doi = {{10.1016/j.cplett.2004.01.081}},
volume = {{386}},
year = {{2004}},
}