Details

Autor(en) / Beteiligte

• Lemport, Pavel S
• Petrov, Valentine S
• Matveev, Petr I
• Leksina, Uliana M
• Roznyatovsky, Vitaly A
• Gloriozov, Igor P
• Yatsenko, Alexandr V
• Tafeenko, Viktor A
• Dorovatovskii, Pavel V
• Khrustalev, Viktor N
• Budylin, Gleb S
• Shirshin, Evgeny A
• Markov, Vitaliy Yu
• Goryunkov, Alexey A
• Petrov, Vladimir G
• Ustynyuk, Yuri A
• Nenajdenko, Valentine G

Titel

First 24-Membered Macrocyclic 1,10-Phenanthroline-2,9-Diamides-An Efficient Switch from Acidic to Alkaline Extraction of f -Elements

Ist Teil von

• International journal of molecular sciences, 2023-06, Vol.24 (12), p.10261

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2023

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A reaction of acyl chlorides derived from 1,10-phenanthroline-2,9-dicarboxylic acids with piperazine allows the preparation of the corresponding 24-membered macrocycles in good yield. The structural and spectral properties of these new macrocyclic ligands were thoroughly investigated, revealing promising coordination properties towards f-elements (Am, Eu). It was shown that the prepared ligands can be used for selective extraction of Am(III) from alkaline-carbonate media in presence of Eu(III) with an SF up to 40. Their extraction efficiency is higher than calixarene-type extraction of the Am(III) and Eu(III) pair. Composition of macrocycle-metal complex with Eu(III) was investigated by luminescence and UV-vis spectroscopy. The possibility of such ligands to form complexes of L:Eu = 1:2 stoichiometry is revealed.