Calcium Photorelease from a Symmetrical Donor−Acceptor−Donor Bis-crown-fluoroionophore Evidenced by Ultrafast Absorption Spectroscopy
Nathalie Marcotte
1
,
Pascal Plaza
1
,
Dominique Lavabre
1
,
Suzanne Fery-Forgues
1
,
Monique M Martin
1
Publication type: Journal Article
Publication date: 2003-03-14
scimago Q2
wos Q2
SJR: 0.634
CiteScore: 4.8
Impact factor: 2.8
ISSN: 10895639, 15205215
Physical and Theoretical Chemistry
Abstract
The excited-state properties of a calcium dicomplex (AM2) of 2,5-[bis-[4N-(aza-15-crown-5)phenyl]methylene]cyclopentanone (A) in acetonitrile are investigated by ultrafast absorption spectroscopy. Spectroscopic evidence of an ultrafast cation decoordination following subpicosecond excitation of the chromophore is given. A global analysis of the time-resolved data is performed, and a kinetic scheme is tentatively proposed, which quantitatively describes the dynamics of the deactivation pathway of the AM2 dicomplex. A first step would involve the disruption of one of the two nitrogen−calcium bonds at a rate constant of 4 × 1011 s-1, followed by the diffusion of the cation out of the crown at a rate of 5.8 × 1010 s-1. The resulting AM complex would then relax both to its ground state (5.4 × 108 s-1) and to its triplet state (2.8 × 108 s-1).
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Marcotte N. et al. Calcium Photorelease from a Symmetrical Donor−Acceptor−Donor Bis-crown-fluoroionophore Evidenced by Ultrafast Absorption Spectroscopy // Journal of Physical Chemistry A. 2003. Vol. 107. No. 14. pp. 2394-2402.
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Marcotte N., Plaza P., Lavabre D., Fery-Forgues S., Martin M. M. Calcium Photorelease from a Symmetrical Donor−Acceptor−Donor Bis-crown-fluoroionophore Evidenced by Ultrafast Absorption Spectroscopy // Journal of Physical Chemistry A. 2003. Vol. 107. No. 14. pp. 2394-2402.
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RIS
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TY - JOUR
DO - 10.1021/jp027495u
UR - https://doi.org/10.1021/jp027495u
TI - Calcium Photorelease from a Symmetrical Donor−Acceptor−Donor Bis-crown-fluoroionophore Evidenced by Ultrafast Absorption Spectroscopy
T2 - Journal of Physical Chemistry A
AU - Marcotte, Nathalie
AU - Plaza, Pascal
AU - Lavabre, Dominique
AU - Fery-Forgues, Suzanne
AU - Martin, Monique M
PY - 2003
DA - 2003/03/14
PB - American Chemical Society (ACS)
SP - 2394-2402
IS - 14
VL - 107
SN - 1089-5639
SN - 1520-5215
ER -
Cite this
BibTex (up to 50 authors)
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@article{2003_Marcotte,
author = {Nathalie Marcotte and Pascal Plaza and Dominique Lavabre and Suzanne Fery-Forgues and Monique M Martin},
title = {Calcium Photorelease from a Symmetrical Donor−Acceptor−Donor Bis-crown-fluoroionophore Evidenced by Ultrafast Absorption Spectroscopy},
journal = {Journal of Physical Chemistry A},
year = {2003},
volume = {107},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/jp027495u},
number = {14},
pages = {2394--2402},
doi = {10.1021/jp027495u}
}
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MLA
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Marcotte, Nathalie, et al. “Calcium Photorelease from a Symmetrical Donor−Acceptor−Donor Bis-crown-fluoroionophore Evidenced by Ultrafast Absorption Spectroscopy.” Journal of Physical Chemistry A, vol. 107, no. 14, Mar. 2003, pp. 2394-2402. https://doi.org/10.1021/jp027495u.