Hexanuclear iron(III) alpha-aminophosphonate: synthesis, structure, and magnetic properties of a molecular wheel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00102320" target="_blank" >RIV/00216224:14310/18:00102320 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/18:73588012
Result on the web
<a href="http://dx.doi.org/10.1039/c7nj03606j" target="_blank" >http://dx.doi.org/10.1039/c7nj03606j</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c7nj03606j" target="_blank" >10.1039/c7nj03606j</a>
Alternative languages
Result language
angličtina
Original language name
Hexanuclear iron(III) alpha-aminophosphonate: synthesis, structure, and magnetic properties of a molecular wheel
Original language description
A new hexanuclear molecular iron phosphonate complex, [Fe-6(HAIPA)(12)(OH)(6)]center dot nH(2)O (1 center dot n(2)O) (H(2)AIPA = NH2(CH3)(2)CP(O)(OH)(2), (2-aminopropan-2-yl) phosphonic acid), was synthesized from Fe2+ and Fe3+ salts in water by interaction with the ligand salts. Addition of corresponding amounts of sodium or tetramethylammonium salts of H2AIPA to the solution of iron precursors led to the formation of large bright-green crystals of complex 1. Isolated products were studied by spectroscopic and analytical methods -IR, Mossbauer spectroscopy, TG/DSC, ICP-OES, and CHN analysis. A novel {Fe-6} hexanuclear molecular structure of 1 was confirmed by single crystal X-ray diffraction analysis. An octahedral coordination environment of iron cations is formed by phosphonate and hydroxo oxygens. Twelve phosphonate groups and six -OH groups act as bridging ligands and bind six Fe octahedra. Because of protonation of the amino group, the phosphonate anions coordinate in the zwitterionic form as HAIPA(-) (NH3+(CH3)(2)CPO32-). The iron cations are present in the form of high-spin Fe3+, which was confirmed by the bond valence sum (BVS) calculations and the Fe-57 Mossbauer spectra. The magnetic measurements show antiferromagnetic coupling between the iron centers with decreasing temperature.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
New Journal of Chemistry
ISSN
1144-0546
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
1931-1938
UT code for WoS article
000423702900045
EID of the result in the Scopus database
2-s2.0-85041184730