New Type of Nanoparticles, Nanomicelles Formed in Water-Saturated Organic Solutions of HFeCl4 and HClO4: Composition, Structure and Properties Full article
Journal |
Journal of the Chemical Society - Faraday Transactions (1990-1998, in 1999 become Physical Chemistry Chemical Physics)
ISSN: 0956-5000 |
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Output data | Year: 1998, Volume: 94, Number: 18, Pages: 2803-2812 Pages count : 10 DOI: 10.1039/a802368i | ||
Authors |
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Affiliations |
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Funding (3)
1 | International Science Foundation | NPK 000 |
2 | International Science Foundation | NPK 300 |
3 | German Academic Exchange Service |
Abstract:
It has been shown, by IR spectroscopy, that two types of nanomicelles are formed in water-saturated tributylphosphate (TBP) containing HFeCl4 or HClO4. Nanomicelles of type A contain one HAn molecule, whereas nanomicelles of type B contain up to 3–4 HAn molecules. Unlike classic micelles, nanomicelles A and B have a stable, almost stoichiometric, composition. The core of type A contains 26 or 30 H2O molecules and one H5O2+ cation. Two protons of H5O2+ are bonded to two TBP molecules from the solvate shell around the core. The first and second hydrate shells are formed around the other two protons from six water molecules inequivalent to the other water molecules of the core. The FeCl4− anion is located in the solvate shell from a bimolecular layer of TBP molecules, whereas ClO4− contacts with the core. The composition and structure of type B with different numbers of incorporated HAn molecules has been determined. The polarizing effect of the ClO4− anion on the H5O2+ cation has been found to be sufficiently strong to be detectable in the IR spectra only in nanomicelles B containing HClO4 molecules. In this case the effect of the anion is experienced even by 2 TBP and 2 H2O molecules from the first coordination sphere of H5O2+. Possible explanations for the ease of formation of mixed (HCl+HFeCl4) nanomicelles are discussed.
Cite:
Stoyanov E.S.
New Type of Nanoparticles, Nanomicelles Formed in Water-Saturated Organic Solutions of HFeCl4 and HClO4: Composition, Structure and Properties
Journal of the Chemical Society - Faraday Transactions (1990-1998, in 1999 become Physical Chemistry Chemical Physics). 1998. V.94. N18. P.2803-2812. DOI: 10.1039/a802368i WOS Scopus РИНЦ
New Type of Nanoparticles, Nanomicelles Formed in Water-Saturated Organic Solutions of HFeCl4 and HClO4: Composition, Structure and Properties
Journal of the Chemical Society - Faraday Transactions (1990-1998, in 1999 become Physical Chemistry Chemical Physics). 1998. V.94. N18. P.2803-2812. DOI: 10.1039/a802368i WOS Scopus РИНЦ
Dates:
Submitted: | Mar 16, 1998 |
Accepted: | Jul 1, 1998 |
Published print: | Sep 1, 1998 |
Identifiers:
Web of science | WOS:000076084900022 |
Scopus | 2-s2.0-33748645547 |
Elibrary | 13304078 |
Chemical Abstracts | 1998:632803 |
Chemical Abstracts (print) | 129:306830 |
OpenAlex | W2025758754 |