Energy transfer and conformational dynamics in Zn-porphyrin dendrimers

Jane Larsen; Johan Andersson; Tomas Polivka; J Sly; M J Crossley; Villy Sundström; Eva Åkesson

doi:10.1016/j.cplett.2004.12.109

Energy transfer and conformational dynamics in Zn-porphyrin dendrimers

Jane Larsen, Johan Andersson, Tomas Polivka, J Sly, M J Crossley, Villy Sundström, Eva Åkesson

Kemisk fysik

Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Sammanfattning

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.

Originalspråk	engelska
Sidor (från-till)	205-210
Tidskrift	Chemical Physics Letters
Volym	403
Nummer	1-3
DOI	https://doi.org/10.1016/j.cplett.2004.12.109
Status	Published - 2005

Bibliografisk information

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)

Ämnesklassifikation (UKÄ)

Atom- och molekylfysik och optik

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10.1016/j.cplett.2004.12.109

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title = "Energy transfer and conformational dynamics in Zn-porphyrin dendrimers",

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 = "Jane Larsen and Johan Andersson and Tomas Polivka and J Sly and Crossley, {M J} and Villy Sundstr{\"o}m and Eva {\AA}kesson",

note = "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)",

year = "2005",

doi = "10.1016/j.cplett.2004.12.109",

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T1 - Energy transfer and conformational dynamics in Zn-porphyrin dendrimers

AU - Larsen, Jane

AU - Andersson, Johan

AU - Polivka, Tomas

AU - Sly, J

AU - Crossley, M J

AU - Sundström, Villy

AU - Åkesson, Eva

N1 - 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)

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

U2 - 10.1016/j.cplett.2004.12.109

DO - 10.1016/j.cplett.2004.12.109

M3 - Article

SN - 0009-2614

VL - 403

SP - 205

EP - 210

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Energy transfer and conformational dynamics in Zn-porphyrin dendrimers

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