The time-resolved fluorescence study of kinetics and
thermodynamics of Eu(III) and Tb(III) complexes with the DO2A
macrocyclic ligand

J 2018

The time-resolved fluorescence study of kinetics and thermodynamics of Eu(III) and Tb(III) complexes with the DO2A macrocyclic ligand

SMRČKA, Filip and Přemysl LUBAL

Basic information

Original name

The time-resolved fluorescence study of kinetics and thermodynamics of Eu(III) and Tb(III) complexes with the DO2A macrocyclic ligand

Authors

SMRČKA, Filip (203 Czech Republic, belonging to the institution) and Přemysl LUBAL (203 Czech Republic, guarantor, belonging to the institution)

Edition

New Journal of Chemistry, Cambridge, ROYAL SOC. CHEMISTRY, 2018, 1144-0546

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10402 Inorganic and nuclear chemistry

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 3.069

RIV identification code

RIV/00216224:14310/18:00101195

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1039/c8nj00255j

UT WoS

000434245500053

Keywords in English

LANTHANIDE(III) COMPLEXES; METAL COMPLEXES; LUMINESCENCE; DISSOCIATION; EQUILIBRIA; STABILITY; PROBES; SENSOR

Abstract

V originále

The thermodynamics of the interaction of the H(2)DO2A (= 1,4,7,10-tetraazacyclododecane-1,7-diacetic acid) macrocyclic ligand with both Eu(III) and Tb(III) ions was studied by means of luminescence spectroscopy in steady-state and time-resolved modes. It was shown that it is possible to calculate stability constants for both complexes that agree with values determined by other experimental techniques. The study of the formation and dissociation of both Ln(III) complexes shows that there is no significant difference in their reactivity if they contain three (Eu) or two (Tb) water molecules in their coordination shell. The two species of ligands present in the formation reaction, HL- and L2-, differ in their reactivity, which can be explained by the difference in charge and the presence of a proton in the macrocyclic cavity. A detailed study of the dissociation reaction proved that the reaction mechanism consists of several pathways of intermediates, which differ in their structure and rate of decomposition.

Links

GA13-08336S, research and development project

Name: Hybridní materiály založené na makrocyklických ligandech pro využití v medicíně

Investor: Czech Science Foundation

LQ1601, research and development project

Name: CEITEC 2020 (Acronym: CEITEC2020)

Investor: Ministry of Education, Youth and Sports of the CR

MUNI/A/1237/2016, interní kód MU

Name: Vývoj metod a instrumentace pro analýzu biologicky významných látek 2017

Investor: Masaryk University, Category A

Citovat

SMRČKA, Filip and Přemysl LUBAL. The time-resolved fluorescence study of kinetics and thermodynamics of Eu(III) and Tb(III) complexes with the DO2A macrocyclic ligand. New Journal of Chemistry. Cambridge: ROYAL SOC. CHEMISTRY, 2018, vol. 42, No 10, p. 7993-8000. ISSN 1144-0546. Available from: https://dx.doi.org/10.1039/c8nj00255j.

@article{1439564,
   author = {Smrčka, Filip and Lubal, Přemysl},
   article_location = {Cambridge},
   article_number = {10},
   doi = {http://dx.doi.org/10.1039/c8nj00255j},
   keywords = {LANTHANIDE(III) COMPLEXES; METAL COMPLEXES; LUMINESCENCE; DISSOCIATION; EQUILIBRIA; STABILITY; PROBES; SENSOR},
   language = {eng},
   issn = {1144-0546},
   journal = {New Journal of Chemistry},
   title = {The time-resolved fluorescence study of kinetics and thermodynamics of Eu(III) and Tb(III) complexes with the DO2A macrocyclic ligand},
   url = {http://dx.doi.org/10.1039/c8nj00255j},
   volume = {42},
   year = {2018}
}

TY  - JOUR
ID  - 1439564
AU  - Smrčka, Filip - Lubal, Přemysl
PY  - 2018
TI  - The time-resolved fluorescence study of kinetics and thermodynamics of Eu(III) and Tb(III) complexes with the DO2A macrocyclic ligand
JF  - New Journal of Chemistry
VL  - 42
IS  - 10
SP  - 7993-8000
EP  - 7993-8000
PB  - ROYAL SOC. CHEMISTRY
SN  - 11440546
KW  - LANTHANIDE(III) COMPLEXES
KW  - METAL COMPLEXES
KW  - LUMINESCENCE
KW  - DISSOCIATION
KW  - EQUILIBRIA
KW  - STABILITY
KW  - PROBES
KW  - SENSOR
UR  - http://dx.doi.org/10.1039/c8nj00255j
N2  - The thermodynamics of the interaction of the H(2)DO2A (= 1,4,7,10-tetraazacyclododecane-1,7-diacetic acid) macrocyclic ligand with both Eu(III) and Tb(III) ions was studied by means of luminescence spectroscopy in steady-state and time-resolved modes. It was shown that it is possible to calculate stability constants for both complexes that agree with values determined by other experimental techniques. The study of the formation and dissociation of both Ln(III) complexes shows that there is no significant difference in their reactivity if they contain three (Eu) or two (Tb) water molecules in their coordination shell. The two species of ligands present in the formation reaction, HL- and L2-, differ in their reactivity, which can be explained by the difference in charge and the presence of a proton in the macrocyclic cavity. A detailed study of the dissociation reaction proved that the reaction mechanism consists of several pathways of intermediates, which differ in their structure and rate of decomposition.
ER  -

SMRČKA, Filip and Přemysl LUBAL. The time-resolved fluorescence study of kinetics and thermodynamics of Eu(III) and Tb(III) complexes with the DO2A macrocyclic ligand. \textit{New Journal of Chemistry}. Cambridge: ROYAL SOC. CHEMISTRY, 2018, vol.~42, No~10, p.~7993-8000. ISSN~1144-0546. Available from: https://dx.doi.org/10.1039/c8nj00255j.

Detailed Information on Publication Record