Electrospray ionization mass spectrometric investigations of the complexation behavior of macrocyclic thiacrown ethers with bivalent transitional metals (Cu, Co, Ni and Zn)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F12%3A00383784" target="_blank" >RIV/61388963:_____/12:00383784 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/rcm.6352" target="_blank" >http://dx.doi.org/10.1002/rcm.6352</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/rcm.6352" target="_blank" >10.1002/rcm.6352</a>

Result language
angličtina
Original language name
Electrospray ionization mass spectrometric investigations of the complexation behavior of macrocyclic thiacrown ethers with bivalent transitional metals (Cu, Co, Ni and Zn)
Original language description
RATIONALE Heavy metals are both a problem for the environment and an important resource for industry. Their selective extraction by means of organic ligands therefore is an attractive topic. The coordination of three thiacrown ethers to late 3d-metal ions was investigated by a combination of electrospray ionization mass spectrometry (ESI-MS) and electron paramagnetic resonance (EPR). METHODS The mass spectrometric experiments were carried out in an ion trap mass spectrometer with an ESI source. Absolutebinding constants were estimated by comparison with data for 18-crown-6/Na+. EPR spectroscopy was used as a complementary method for investigating the CuI/CuII redox couple. RESULTS The study found that thiacrown ethers preferentially bind traces of copper even at an excess of other metal ions (CoII, NiII, and ZnII). The absolute association constants of the CuI complexes were about 108?M1, and about two orders of magnitude lower for the other 3d-metal cations. The EPR spectra demonstra
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/IAA400550704" target="_blank" >IAA400550704: Fullerene Containers. Design, Synthesis, Properties and Possible Application.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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