New paradigm of transition metal polypyridine complex photochemistry
(2004) In Faraday Discussions 127. p.295-305- Abstract
- Using polarization sensitive ultrafast transient absorption spectroscopy we have studied energy transfer and excited state relaxation pathways in a tetranuclear transition metal [( osmium)( ruthenium)(3)] polypyridine complex. Contrary to the generally accepted picture of transition metal complex photochemistry we find that ultrafast energy transfer ( less than or equal to 60 fs) occurs from the excited singlet MLCT state of the peripheral Ru-chromophores to the central Os-core, in efficient competition with intersystem crossing. Energy transfer between relaxed triplet MLCT states is more than an order of magnitude slower ( 600 fs).
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/138961
- 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
- Faraday Discussions
- volume
- 127
- pages
- 295 - 305
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000223139400018
- pmid:15471351
- scopus:5644226412
- ISSN
- 1364-5498
- DOI
- 10.1039/b316160a
- 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
- 5f82bcdf-eb8f-47b7-bf53-672c2b40575a (old id 138961)
- date added to LUP
- 2016-04-01 12:13:09
- date last changed
- 2022-04-05 19:17:14
@article{5f82bcdf-eb8f-47b7-bf53-672c2b40575a, abstract = {{Using polarization sensitive ultrafast transient absorption spectroscopy we have studied energy transfer and excited state relaxation pathways in a tetranuclear transition metal [( osmium)( ruthenium)(3)] polypyridine complex. Contrary to the generally accepted picture of transition metal complex photochemistry we find that ultrafast energy transfer ( less than or equal to 60 fs) occurs from the excited singlet MLCT state of the peripheral Ru-chromophores to the central Os-core, in efficient competition with intersystem crossing. Energy transfer between relaxed triplet MLCT states is more than an order of magnitude slower ( 600 fs).}}, 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 = {{1364-5498}}, language = {{eng}}, pages = {{295--305}}, publisher = {{Royal Society of Chemistry}}, series = {{Faraday Discussions}}, title = {{New paradigm of transition metal polypyridine complex photochemistry}}, url = {{http://dx.doi.org/10.1039/b316160a}}, doi = {{10.1039/b316160a}}, volume = {{127}}, year = {{2004}}, }