Steady-State and Picosecond Spectroscopy of Li+ or Ca2+ Complexes with a Crowned Merocyanine. Reversible Photorelease of Cations
Publication type: Journal Article
Publication date: 1996-01-01
SJR: —
CiteScore: —
Impact factor: —
ISSN: 00223654, 15415740
Physical and Theoretical Chemistry
General Engineering
Abstract
Reversible photorelease of Li+ and Ca2+ cations from complexes with a crowned derivative of the merocyanine dye DCM (4-(dicyanomethylene)-2-methyl-6-(p-(dimethylamino)styryl)-4H-pyran) in acetonitrile is investigated by steady-state and time-resolved spectroscopy. The results obtained by fluorescence spectroscopy reveal the presence of two emitting species in solutions containing DCM−crown complexes. One species with a 2 ns lifetime is attributed to the free ligand resulting from cation photorelease, with a maximum formation yield of 86% for Li+ and 41% for Ca2+. The other one with a 400 ps slightly blue-shifted emission for both cations is suggested to be due to a loose complex. The mechanism of cation photorelease is studied by transient absorption and gain spectroscopy within 2 ns after excitation with a 0.7 ps pulse at 425 nm. In the 360−660 nm spectral range, the main changes observed take place within 30 ps. For longer time delays the time-resolved differential spectra indicate a dominant decay of 1...
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87
Total citations:
87
Citations from 2025:
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Martin M. M. et al. Steady-State and Picosecond Spectroscopy of Li+ or Ca2+ Complexes with a Crowned Merocyanine. Reversible Photorelease of Cations // The Journal of Physical Chemistry. 1996. Vol. 100. No. 17. pp. 6879-6888.
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Martin M. M., Plaza P., Meyer Y. H., Badaoui F., Bourson J., Lefèvre J. P., Valeur B. Steady-State and Picosecond Spectroscopy of Li+ or Ca2+ Complexes with a Crowned Merocyanine. Reversible Photorelease of Cations // The Journal of Physical Chemistry. 1996. Vol. 100. No. 17. pp. 6879-6888.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/jp952783u
UR - https://doi.org/10.1021/jp952783u
TI - Steady-State and Picosecond Spectroscopy of Li+ or Ca2+ Complexes with a Crowned Merocyanine. Reversible Photorelease of Cations
T2 - The Journal of Physical Chemistry
AU - Martin, Monique M
AU - Plaza, Pascal
AU - Meyer, Yves H
AU - Badaoui, Fatima
AU - Bourson, Jean
AU - Lefèvre, Jean Pierre
AU - Valeur, Bernard
PY - 1996
DA - 1996/01/01
PB - American Chemical Society (ACS)
SP - 6879-6888
IS - 17
VL - 100
SN - 0022-3654
SN - 1541-5740
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{1996_Martin,
author = {Monique M Martin and Pascal Plaza and Yves H Meyer and Fatima Badaoui and Jean Bourson and Jean Pierre Lefèvre and Bernard Valeur},
title = {Steady-State and Picosecond Spectroscopy of Li+ or Ca2+ Complexes with a Crowned Merocyanine. Reversible Photorelease of Cations},
journal = {The Journal of Physical Chemistry},
year = {1996},
volume = {100},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/jp952783u},
number = {17},
pages = {6879--6888},
doi = {10.1021/jp952783u}
}
Cite this
MLA
Copy
Martin, Monique M., et al. “Steady-State and Picosecond Spectroscopy of Li+ or Ca2+ Complexes with a Crowned Merocyanine. Reversible Photorelease of Cations.” The Journal of Physical Chemistry, vol. 100, no. 17, Jan. 1996, pp. 6879-6888. https://doi.org/10.1021/jp952783u.