THERMODYNAMIC AND KINETIC STUDIES OF LANTHANIDE(III) COMPLEXES
WITH H5do3ap
(1,4,7,10-TETRAAZACYCLODODECANE-1,4,7-TRIACETIC-10-(METHYLPHOSP
HONIC ACID)), A MONOPHOSPHONATE ANALOGUE OF H4dota

J 2005

THERMODYNAMIC AND KINETIC STUDIES OF LANTHANIDE(III) COMPLEXES WITH H5do3ap (1,4,7,10-TETRAAZACYCLODODECANE-1,4,7-TRIACETIC-10-(METHYLPHOSPHONIC ACID)), A MONOPHOSPHONATE ANALOGUE OF H4dota

TÁBORSKÝ, Petr, Přemysl LUBAL, Josef HAVEL, Jan KOTEK, Petr HERMANN et. al.

Základní údaje

Originální název

THERMODYNAMIC AND KINETIC STUDIES OF LANTHANIDE(III) COMPLEXES WITH H5do3ap (1,4,7,10-TETRAAZACYCLODODECANE-1,4,7-TRIACETIC-10-(METHYLPHOSPHONIC ACID)), A MONOPHOSPHONATE ANALOGUE OF H4dota

Název česky

Termodynamická a kinetická studie komplexů lanthanoidů(III) s H5do3ap (1,4,7,10-tetraazacyklododekan-1,4,7-triaceto-10-(methylfosfonová kyselina)), monofosfonátovým analogem H4dota

Autoři

TÁBORSKÝ, Petr (203 Česká republika), Přemysl LUBAL (203 Česká republika, garant), Josef HAVEL (203 Česká republika), Jan KOTEK (203 Česká republika), Petr HERMANN (203 Česká republika) a Ivan LUKEŠ (203 Česká republika)

Vydání

Collection of Czechoslovak Chemical Communications, Praha, 2005, 0010-0765

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10406 Analytical chemistry

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

CCCC

Impakt faktor

Impact factor: 0.949

Kód RIV

RIV/00216224:14310/05:00012955

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000234236700012

Klíčová slova anglicky

Azacrown compounds; Phosphonate complexes; Macrocyclic ligand; Cyclen derivative; Tetraazacyclododecane; DOTA; Thermodynamics; Kinetics; Crystal structure determination;Potentiometry; Cerium; Gadolinium; Lanthanide cations.

Štítky

Azacrown compounds, cerium, Crystal structure determination, Cyclen derivative, DOTA, Gadolinium, kinetics, Lanthanide cations., macrocyclic ligand, phosphonate complexes, potentiometry, Tetraazacyclododecane, Thermodynamics

Změněno: 8. 4. 2010 20:02, prof. RNDr. Přemysl Lubal, Ph.D.

Anotace

ORIG CZ

V originále

Solution properties of complexes of a new H4dota-like ligand containing three acetate and one methylphosphonate pendant arms (H5do3ap, H5L) were studied. The ligand exhibits a high last dissociation constant (pKA = 13.83) as a consequence of the presence of phosphonate moiety. In solution, successive attachment of protons leads to several reorganizations of protonation sites and the neutral zwitterionic species H5do3ap has the same solution structure as in the solid state where the nitrogen atom binding methylphosphonate and the opposite nitrogen atoms are protonated. Stability constants with Na+ and trivalent lanthanide ions (La3+, Ce3+, Eu3+, Gd3+, Lu3+) and Y3+ were determined. The constants are comparable or higher than those of H4dota due to the higher overall basicity of H5do3ap. Formation of the stable protonated complexes as well as complexes with the L:M = 1:2 stoichiometry was proved. Formation and decomplexation kinetics of the Ce3+ and Gd3+ complexes were investigated.

Česky

V předložené práci byly studovány vlastnosti komplexů kovů s ligandem, který je analogem H4dota obsahujícím tři acetátové a jedno methylfosfonové pendantní rameno. Bylo prokázáno, že poslední disociační konstanta je velmi vysoká (pKa=13,83)jako důsledek přítomnosti fosfonátového řetězce.

Návaznosti

GA203/03/0168, projekt VaV

Název: Kineticky inertní komplexy iontů přechodných kovů a lanthanoidů. Design, syntéza a kinetická studia

OC D18.001, projekt VaV

Název: Luminiscenční komplexy lanthanoidů pro analytické a diagnostické aplikace.

Citovat

TÁBORSKÝ, Petr, Přemysl LUBAL, Josef HAVEL, Jan KOTEK, Petr HERMANN a Ivan LUKEŠ. THERMODYNAMIC AND KINETIC STUDIES OF LANTHANIDE(III) COMPLEXES WITH H5do3ap (1,4,7,10-TETRAAZACYCLODODECANE-1,4,7-TRIACETIC-10-(METHYLPHOSPHONIC ACID)), A MONOPHOSPHONATE ANALOGUE OF H4dota. Collection of Czechoslovak Chemical Communications. Praha, 2005, roč. 70, č. 11, s. 1909-1942. ISSN 0010-0765.

@article{599004,
   author = {Táborský, Petr and Lubal, Přemysl and Havel, Josef and Kotek, Jan and Hermann, Petr and Lukeš, Ivan},
   article_location = {Praha},
   article_number = {11},
   keywords = {Azacrown compounds; Phosphonate complexes; Macrocyclic ligand; Cyclen derivative; Tetraazacyclododecane; DOTA; Thermodynamics; Kinetics; Crystal structure determination;Potentiometry; Cerium; Gadolinium; Lanthanide cations.},
   language = {eng},
   issn = {0010-0765},
   journal = {Collection of Czechoslovak Chemical Communications},
   title = {THERMODYNAMIC AND KINETIC STUDIES OF LANTHANIDE(III) COMPLEXES WITH H5do3ap (1,4,7,10-TETRAAZACYCLODODECANE-1,4,7-TRIACETIC-10-(METHYLPHOSPHONIC ACID)), A MONOPHOSPHONATE ANALOGUE OF H4dota},
   url = {http://cccc.uochb.cas.cz/Vol/70/No11/20051909.html},
   volume = {70},
   year = {2005}
}

TY  - JOUR
ID  - 599004
AU  - Táborský, Petr - Lubal, Přemysl - Havel, Josef - Kotek, Jan - Hermann, Petr - Lukeš, Ivan
PY  - 2005
TI  - THERMODYNAMIC AND KINETIC STUDIES OF LANTHANIDE(III) COMPLEXES WITH H5do3ap (1,4,7,10-TETRAAZACYCLODODECANE-1,4,7-TRIACETIC-10-(METHYLPHOSPHONIC ACID)), A MONOPHOSPHONATE ANALOGUE OF H4dota
JF  - Collection of Czechoslovak Chemical Communications
VL  - 70
IS  - 11
SP  - 1909-1942
EP  - 1909-1942
SN  - 00100765
KW  - Azacrown compounds
KW  - Phosphonate complexes
KW  - Macrocyclic ligand
KW  - Cyclen derivative
KW  - Tetraazacyclododecane
KW  - DOTA
KW  - Thermodynamics
KW  - Kinetics
KW  - Crystal structure determination;Potentiometry
KW  - Cerium
KW  - Gadolinium
KW  - Lanthanide cations.
UR  - http://cccc.uochb.cas.cz/Vol/70/No11/20051909.html
N2  - Solution properties of complexes of a new H4dota-like ligand containing three acetate and one methylphosphonate pendant arms (H5do3ap, H5L) were studied. The ligand exhibits a high last dissociation constant (pKA = 13.83) as a consequence of the presence of phosphonate moiety. In solution, successive attachment of protons leads to several reorganizations of protonation sites and the neutral zwitterionic species H5do3ap has the same solution structure as in the solid state where the nitrogen atom binding methylphosphonate and the opposite nitrogen atoms are protonated. Stability constants with Na+ and trivalent lanthanide ions (La3+, Ce3+, Eu3+, Gd3+, Lu3+) and Y3+ were determined. The constants are comparable or higher than those of H4dota due to the higher overall basicity of H5do3ap. Formation of the stable protonated complexes as well as complexes with the L:M = 1:2 stoichiometry was proved. Formation and decomplexation kinetics of the Ce3+ and Gd3+ complexes were investigated.
ER  -

TÁBORSKÝ, Petr, Přemysl LUBAL, Josef HAVEL, Jan KOTEK, Petr HERMANN a Ivan LUKEŠ. THERMODYNAMIC AND KINETIC STUDIES OF LANTHANIDE(III) COMPLEXES WITH H5do3ap (1,4,7,10-TETRAAZACYCLODODECANE-1,4,7-TRIACETIC-10-(METHYLPHOSPHONIC ACID)), A MONOPHOSPHONATE ANALOGUE OF H4dota. \textit{Collection of Czechoslovak Chemical Communications}. Praha, 2005, roč.~70, č.~11, s.~1909-1942. ISSN~0010-0765.

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