Complexes of spiropyran-derived merocyanines with metal ions: relaxation kinetics, photochemistry and solvent effects
1
Max-Planck-Institut für Strahlenchemie, D-45413 Mülheim an der Ruhr Germany
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Publication type: Journal Article
Publication date: 1998-10-01
scimago Q2
wos Q2
SJR: 0.439
CiteScore: 4.2
Impact factor: 2.4
ISSN: 03010104, 18734421
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract
The complexation of spiropyran-derived merocyanines having a 6-nitro group in the pyran moiety (6-NO2-BIPSs) or no nitro group and certain transition or rare-earth metal ions (Mn+, n=2, 3) were studied by steady-state and time-resolved techniques in acetonitrile, butyronitrile, acetone and dioxane at room temperature. The overall kinetics of complex formation are governed by equilibria between the spiropyran (Sp), trans-merocyanine (trans) and complex (trans-Mn+) forms. For this two-step system two relaxation times are experimentally accessible which refer to fast (τI) and slow (τII) relaxation kinetics. Thermal or photochemical perturbation of the equilibria leads to the same τII value for a given 6-NO2-BIPS and metal ion in defined concentrations. With increasing [Mn+], τII strongly increases and finally approaches the time needed for the thermal Sp→trans conversion. Water in small concentration (
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105
Total citations:
105
Citations from 2025:
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(6.66%)
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Chibisov A. K., Görner H. Complexes of spiropyran-derived merocyanines with metal ions: relaxation kinetics, photochemistry and solvent effects // Chemical Physics. 1998. Vol. 237. No. 3. pp. 425-442.
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Chibisov A. K., Görner H. Complexes of spiropyran-derived merocyanines with metal ions: relaxation kinetics, photochemistry and solvent effects // Chemical Physics. 1998. Vol. 237. No. 3. pp. 425-442.
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TY - JOUR
DO - 10.1016/S0301-0104(98)00291-2
UR - https://doi.org/10.1016/S0301-0104(98)00291-2
TI - Complexes of spiropyran-derived merocyanines with metal ions: relaxation kinetics, photochemistry and solvent effects
T2 - Chemical Physics
AU - Chibisov, Alexander K.
AU - Görner, Helmut
PY - 1998
DA - 1998/10/01
PB - Elsevier
SP - 425-442
IS - 3
VL - 237
SN - 0301-0104
SN - 1873-4421
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{1998_Chibisov,
author = {Alexander K. Chibisov and Helmut Görner},
title = {Complexes of spiropyran-derived merocyanines with metal ions: relaxation kinetics, photochemistry and solvent effects},
journal = {Chemical Physics},
year = {1998},
volume = {237},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/S0301-0104(98)00291-2},
number = {3},
pages = {425--442},
doi = {10.1016/S0301-0104(98)00291-2}
}
Cite this
MLA
Copy
Chibisov, Alexander K., and Helmut Görner. “Complexes of spiropyran-derived merocyanines with metal ions: relaxation kinetics, photochemistry and solvent effects.” Chemical Physics, vol. 237, no. 3, Oct. 1998, pp. 425-442. https://doi.org/10.1016/S0301-0104(98)00291-2.