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Energy transfer and conformational dynamics in Zn-porphyrin dendrimers

Larsen, Jane LU ; Andersson, Johan LU ; Polivka, Tomas LU ; Sly, J; Crossley, M J; Sundström, Villy LU and Åkesson, Eva LU (2005) In Chemical Physics Letters 403(1-3). p.205-210
Abstract
The energy transfer within a series of Zn-porphyrin appended dendrimers was studied by means of time-resolved fluorescence anisotropy. We show that the energy transfer process between the Zn-porphyrin units in the dendrimers is limited to a maximum of four porphyrin units. At 200 K, the energy transfer process takes place on a 100-ps time scale, and can be modeled by Forster theory. Our results at room temperature further show that the porphyrin units are very mobile within the dendrimer, exhibiting rotational dynamics similar to that of a monomeric building block. (C) 2005 Elsevier B.V. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Physics Letters
volume
403
issue
1-3
pages
205 - 210
publisher
Elsevier
external identifiers
  • wos:000226934300035
  • scopus:12844280570
ISSN
0009-2614
DOI
10.1016/j.cplett.2004.12.109
language
English
LU publication?
yes
id
1d2f092c-40ae-470e-8e82-b8f3789bac01 (old id 151982)
date added to LUP
2007-07-03 13:56:54
date last changed
2017-01-01 07:19:42
@article{1d2f092c-40ae-470e-8e82-b8f3789bac01,
  abstract     = {The energy transfer within a series of Zn-porphyrin appended dendrimers was studied by means of time-resolved fluorescence anisotropy. We show that the energy transfer process between the Zn-porphyrin units in the dendrimers is limited to a maximum of four porphyrin units. At 200 K, the energy transfer process takes place on a 100-ps time scale, and can be modeled by Forster theory. Our results at room temperature further show that the porphyrin units are very mobile within the dendrimer, exhibiting rotational dynamics similar to that of a monomeric building block. (C) 2005 Elsevier B.V. All rights reserved.},
  author       = {Larsen, Jane and Andersson, Johan and Polivka, Tomas and Sly, J and Crossley, M J and Sundström, Villy and Åkesson, Eva},
  issn         = {0009-2614},
  language     = {eng},
  number       = {1-3},
  pages        = {205--210},
  publisher    = {Elsevier},
  series       = {Chemical Physics Letters},
  title        = {Energy transfer and conformational dynamics in Zn-porphyrin dendrimers},
  url          = {http://dx.doi.org/10.1016/j.cplett.2004.12.109},
  volume       = {403},
  year         = {2005},
}