| FÖRSTEROVÁ, Michaela, Ivona SVOBODOVÁ, Přemysl LUBAL, Petr TÁBORSKÝ, Jan KOTEK, Petr HERMANN and Ivan LUKEŠ. Thermodynamic study of lanthanide(III) complexes with bifunctional monophosphinic acid analogues of H4dota and comparative kinetic study of yttrium(III) complexes. Dalton transactions : an international journal of inorganic chemistry. Cambridge: The Royal Society of Chemistry, 2007, xxx, No 2, p. 535-549, 16 pp. ISSN 1477-9226. |
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@article{710061,
author = {Försterová, Michaela and Svobodová, Ivona and Lubal, Přemysl and Táborský, Petr and Kotek, Jan and Hermann, Petr and Lukeš, Ivan},
article_location = {Cambridge},
article_number = {2},
keywords = {azacrown compounds; phosphonate/phosphinate complexes; macrocyclic ligand; cyclen derivative; tetraazacyclododecane; DOTA; thermodynamics; kinetics; crystal structure determination; potentiometry; yttrium(III); lanthanide(III) cations},
language = {eng},
issn = {1477-9226},
journal = {Dalton transactions : an international journal of inorganic chemistry},
title = {Thermodynamic study of lanthanide(III) complexes with bifunctional monophosphinic acid analogues of H4dota and comparative kinetic study of yttrium(III) complexes},
volume = {xxx},
year = {2007}
}
TY - JOUR
ID - 710061
AU - Försterová, Michaela - Svobodová, Ivona - Lubal, Přemysl - Táborský, Petr - Kotek, Jan - Hermann, Petr - Lukeš, Ivan
PY - 2007
TI - Thermodynamic study of lanthanide(III) complexes with bifunctional monophosphinic acid analogues of H4dota and comparative kinetic study of yttrium(III) complexes
JF - Dalton transactions : an international journal of inorganic chemistry
VL - xxx
IS - 2
SP - 535-549
EP - 535-549
PB - The Royal Society of Chemistry
SN - 14779226
KW - azacrown compounds
KW - phosphonate/phosphinate complexes
KW - macrocyclic ligand
KW - cyclen derivative
KW - tetraazacyclododecane
KW - DOTA
KW - thermodynamics
KW - kinetics
KW - crystal structure determination
KW - potentiometry
KW - yttrium(III)
KW - lanthanide(III) cations
N2 - New bifunctional H4dota-like ligands with three acetic acid and one phosphinic acid pendant arms and propionate (H5do3apPrA) or 4-aminobenzyl (H4do3apABn) reactive groups bound to the phosphorus atom were investigated. Potentiometric studies showed that the ligands have a similar basicity to the parent H4dota and the stability constants of their complexes with sodium(I) and selected lanthanide(III) ions are also similar. Formation and acid-assisted decomplexation kinetics of yttrium(III) complexes with a series of H4dota-like ligands (H4dota and its phosphinic/phosphonic acid analogues) were studied and the reactions are sensitive to a slight modification of the ligand structure. The (2-carboxyethyl)phosphinic acid derivative H5do3apPrA and the phosphonic acid ligand H5do3ap form complexes faster than H4dota. The most kinetically inert complex is that with H4do3apABn. Rates of complexation and decomplexation can depend on the ability to transfer proton(s) outside/inside the complex cavity.
ER -
FÖRSTEROVÁ, Michaela, Ivona SVOBODOVÁ, Přemysl LUBAL, Petr TÁBORSKÝ, Jan KOTEK, Petr HERMANN and Ivan LUKEŠ. Thermodynamic study of lanthanide(III) complexes with bifunctional monophosphinic acid analogues of H4dota and comparative kinetic study of yttrium(III) complexes. \textit{Dalton transactions : an international journal of inorganic chemistry}. Cambridge: The Royal Society of Chemistry, 2007, xxx, No~2, p.~535-549, 16 pp. ISSN~1477-9226.
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