LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS
An analysis of the fluorescent characteristics of ethylenediamine-N,N'-disuccinic and N,N-bis(phosphonomethyl)-2-aminopropionic acids was carried out depending on the pH of the solutions. It was established that the change in fluorescence intensity and lifetime is associated with the formation...
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| Datum: | 2023 |
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V.I.Vernadsky Institute of General and Inorganic Chemistry
2023
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oai:ojs2.1444248.nisspano.web.hosting-test.net:article-5542023-08-31T11:56:30Z LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS Trunova, Olena Rusakova, Nataliia complexes, neodymium, aminopolycarboxylic acids, aminocarboxyphosphonates, synthesis, luminescence. An analysis of the fluorescent characteristics of ethylenediamine-N,N'-disuccinic and N,N-bis(phosphonomethyl)-2-aminopropionic acids was carried out depending on the pH of the solutions. It was established that the change in fluorescence intensity and lifetime is associated with the formation of variously protonated forms of acids in which stable H-cycles are formed with the participation of hydrogen bonds. The energies of the singlet and triplet levels of the ligands were experimentally determined, the values of which are higher than the energy of the radiative level of the Nd(III) ion, which indicates the possibility of intramolecular transfer of the excitation energy to the resonance level of the lanthanide ion. It was established that both homo- and heteronuclear complexes of Nd(III) exhibit 4f-luminescence in the near-IR region. It was found that for phosphorus-containing complexes there is an increase in luminescence intensity and relative quantum yields in comparison with aminocarboxylate analogs. In heterometallic complexes based on aminopolycarboxylic acids, the intramolecular transfer of energy from the excited level of Co(II) to the resonance level of the f-metal leads to sensitization of the 4f-luminescence of the neodymium ion. V.I.Vernadsky Institute of General and Inorganic Chemistry 2023-07-28 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/554 10.33609/2708-129X.89.06.2023.55-70 Ukrainian Chemistry Journal; Vol. 89 No. 6 (2023): Ukrainian Chemistry Journal; 55-70 Украинский химический журнал; Том 89 № 6 (2023): Ukrainian Chemistry Journal; 55-70 Український хімічний журнал; Том 89 № 6 (2023): Ukrainian Chemistry Journal; 55-70 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/554/284 |
| institution |
Ukrainian Chemistry Journal |
| baseUrl_str |
|
| datestamp_date |
2023-08-31T11:56:30Z |
| collection |
OJS |
| language |
English |
| topic_facet |
complexes neodymium aminopolycarboxylic acids aminocarboxyphosphonates synthesis luminescence. |
| format |
Article |
| author |
Trunova, Olena Rusakova, Nataliia |
| spellingShingle |
Trunova, Olena Rusakova, Nataliia LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS |
| author_facet |
Trunova, Olena Rusakova, Nataliia |
| author_sort |
Trunova, Olena |
| title |
LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS |
| title_short |
LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS |
| title_full |
LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS |
| title_fullStr |
LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS |
| title_full_unstemmed |
LUMINESCENT PROPERTIES OF Nd(III) COMPLEXES WITH ETHYLENEDIAMINE-N,N'-DISUCCINIC AND N,N-BIS(PHOSPHONOMETHYL)-2-AMINOPROPIONIC ACIDS |
| title_sort |
luminescent properties of nd(iii) complexes with ethylenediamine-n,n'-disuccinic and n,n-bis(phosphonomethyl)-2-aminopropionic acids |
| description |
An analysis of the fluorescent characteristics of ethylenediamine-N,N'-disuccinic and N,N-bis(phosphonomethyl)-2-aminopropionic acids was carried out depending on the pH of the solutions. It was established that the change in fluorescence intensity and lifetime is associated with the formation of variously protonated forms of acids in which stable H-cycles are formed with the participation of hydrogen bonds. The energies of the singlet and triplet levels of the ligands were experimentally determined, the values of which are higher than the energy of the radiative level of the Nd(III) ion, which indicates the possibility of intramolecular transfer of the excitation energy to the resonance level of the lanthanide ion. It was established that both homo- and heteronuclear complexes of Nd(III) exhibit 4f-luminescence in the near-IR region. It was found that for phosphorus-containing complexes there is an increase in luminescence intensity and relative quantum yields in comparison with aminocarboxylate analogs. In heterometallic complexes based on aminopolycarboxylic acids, the intramolecular transfer of energy from the excited level of Co(II) to the resonance level of the f-metal leads to sensitization of the 4f-luminescence of the neodymium ion. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2023 |
| url |
https://ucj.org.ua/index.php/journal/article/view/554 |
| work_keys_str_mv |
AT trunovaolena luminescentpropertiesofndiiicomplexeswithethylenediaminenndisuccinicandnnbisphosphonomethyl2aminopropionicacids AT rusakovanataliia luminescentpropertiesofndiiicomplexeswithethylenediaminenndisuccinicandnnbisphosphonomethyl2aminopropionicacids |
| first_indexed |
2025-09-24T17:43:51Z |
| last_indexed |
2025-09-24T17:43:51Z |
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