A highly selective fluorescent molecular sensor for potassium based on a calix[4]bisazacrown bearing boron-dipyrromethene fluorophores
Тип публикации: Journal Article
Дата публикации: 2005-07-08
scimago Q2
wos Q3
БС1
SJR: 0.493
CiteScore: 5
Impact factor: 2.5
ISSN: 11440546, 13699261
Materials Chemistry
General Chemistry
Catalysis
Краткое описание
The synthesis of a ditopic fluorescent sensor for cations associating a 1,3 alternate calix[4]bisazacrown-5 as an ionophore and substituted boron-dipyrromethene dyes as fluorophores is reported. Photophysical studies revealed that in medium and high polarity solvents an efficient charge transfer (CT) reaction occurs in the excited state leading to a dual emission and a strong quenching of fluorescence. This CT process is either totally suppressed by amino group protonation or hampered by cation complexation; in both cases, a strong fluorescence enhancement is observed. This “switching-on” of the emission is more pronounced when two cations are coordinated. The stability constants of complexes with sodium, potassium, caesium, calcium and barium cations were measured in acetonitrile and ethanol. The system shows a high sensitivity and selectivity for potassium over other metal ions. A test under physiological conditions was successfully achieved.
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ГОСТ
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Malval J. P. et al. A highly selective fluorescent molecular sensor for potassium based on a calix[4]bisazacrown bearing boron-dipyrromethene fluorophores // New Journal of Chemistry. 2005. Vol. 29. No. 8. p. 1089.
ГОСТ со всеми авторами (до 50)
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Malval J. P., Malval J., Leray I., Valeur B. A highly selective fluorescent molecular sensor for potassium based on a calix[4]bisazacrown bearing boron-dipyrromethene fluorophores // New Journal of Chemistry. 2005. Vol. 29. No. 8. p. 1089.
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TY - JOUR
DO - 10.1039/b504408a
UR - https://doi.org/10.1039/b504408a
TI - A highly selective fluorescent molecular sensor for potassium based on a calix[4]bisazacrown bearing boron-dipyrromethene fluorophores
T2 - New Journal of Chemistry
AU - Malval, Jean Pierre
AU - Malval, Jean‐Pierre
AU - Leray, Isabelle
AU - Valeur, Bernard
PY - 2005
DA - 2005/07/08
PB - Royal Society of Chemistry (RSC)
SP - 1089
IS - 8
VL - 29
SN - 1144-0546
SN - 1369-9261
ER -
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BibTex (до 50 авторов)
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@article{2005_Malval,
author = {Jean Pierre Malval and Jean‐Pierre Malval and Isabelle Leray and Bernard Valeur},
title = {A highly selective fluorescent molecular sensor for potassium based on a calix[4]bisazacrown bearing boron-dipyrromethene fluorophores},
journal = {New Journal of Chemistry},
year = {2005},
volume = {29},
publisher = {Royal Society of Chemistry (RSC)},
month = {jul},
url = {https://doi.org/10.1039/b504408a},
number = {8},
pages = {1089},
doi = {10.1039/b504408a}
}
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MLA
Скопировать
Malval, Jean Pierre, et al. “A highly selective fluorescent molecular sensor for potassium based on a calix[4]bisazacrown bearing boron-dipyrromethene fluorophores.” New Journal of Chemistry, vol. 29, no. 8, Jul. 2005, p. 1089. https://doi.org/10.1039/b504408a.