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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