Structural Rearrangements in 5,10,15,20-Tetrakis(4-sulfonatophenyl)porphyrin J-Aggregates under Strongly Acidic Conditions
Publication type: Journal Article
Publication date: 2003-07-23
scimago Q1
wos Q3
SJR: 0.742
CiteScore: 5.3
Impact factor: 2.9
ISSN: 15206106, 15205207, 10895647
Materials Chemistry
Surfaces, Coatings and Films
Physical and Theoretical Chemistry
Abstract
Recently, we showed that J-aggregates, formed by the zwitterionic diacid form of the porphyrin 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (H2TPPS44-) under acidic conditions, can be described in terms of fractal geometry. We have extended the investigation of the system under strongly acidic conditions through a combination of UV/vis and fluorescence emission spectroscopy, together with static (SLS), quasi-elastic (QELS), and resonant (RLS) light-scattering techniques. The experimental findings suggest that porphyrin J-aggregates begin to form at pH 1 and are stable up to 4 M HCl. On further increasing the acid concentration, protonation of the sulfonate end groups occurs, leading to a disruption of the electrostatic interactions between these anionic groups and the charged protonated nitrogen atoms in the porphyrin core. At [HCl] > 8 M, the spectroscopic features suggest the presence of the monomeric dicationic porphyrin, resulting from a full protonation of the four sulfonate groups. Under the acid...
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104
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104
Citations from 2024:
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Castriciano M. et al. Structural Rearrangements in 5,10,15,20-Tetrakis(4-sulfonatophenyl)porphyrin J-Aggregates under Strongly Acidic Conditions // Journal of Physical Chemistry B. 2003. Vol. 107. No. 34. pp. 8765-8771.
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Castriciano M., Romeo A., Villari V., Micali N., Monsù Scolaro L. Structural Rearrangements in 5,10,15,20-Tetrakis(4-sulfonatophenyl)porphyrin J-Aggregates under Strongly Acidic Conditions // Journal of Physical Chemistry B. 2003. Vol. 107. No. 34. pp. 8765-8771.
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TY - JOUR
DO - 10.1021/jp0273880
UR - https://doi.org/10.1021/jp0273880
TI - Structural Rearrangements in 5,10,15,20-Tetrakis(4-sulfonatophenyl)porphyrin J-Aggregates under Strongly Acidic Conditions
T2 - Journal of Physical Chemistry B
AU - Castriciano, Mariangela
AU - Romeo, Andrea
AU - Villari, V.
AU - Micali, N.
AU - Monsù Scolaro, Luigi
PY - 2003
DA - 2003/07/23
PB - American Chemical Society (ACS)
SP - 8765-8771
IS - 34
VL - 107
SN - 1520-6106
SN - 1520-5207
SN - 1089-5647
ER -
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@article{2003_Castriciano,
author = {Mariangela Castriciano and Andrea Romeo and V. Villari and N. Micali and Luigi Monsù Scolaro},
title = {Structural Rearrangements in 5,10,15,20-Tetrakis(4-sulfonatophenyl)porphyrin J-Aggregates under Strongly Acidic Conditions},
journal = {Journal of Physical Chemistry B},
year = {2003},
volume = {107},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://doi.org/10.1021/jp0273880},
number = {34},
pages = {8765--8771},
doi = {10.1021/jp0273880}
}
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Castriciano, Mariangela, et al. “Structural Rearrangements in 5,10,15,20-Tetrakis(4-sulfonatophenyl)porphyrin J-Aggregates under Strongly Acidic Conditions.” Journal of Physical Chemistry B, vol. 107, no. 34, Jul. 2003, pp. 8765-8771. https://doi.org/10.1021/jp0273880.