Coordination and extraction properties of 1,2-bis(diphenylphosphoryl)-benzene toward f-block element nitrates: structural, spectroscopic and DFT characterization of the complexes

Matveeva, A.G.; Artyushin, O.I.; Pasechnik, M.P.; Stash, A.I.; Vologzhanina, A.V.; Matveev, S.V.; Godovikov, I.A.; Aysin, R.R.; Moiseeva, A.A.; Turanov, A.N.; Karandashev, V.K.; Brel, V.K.

Авторы: Matveeva Anna G., Artyushin Oleg I., Pasechnik Margarita P., Stash Adam I., Vologzhanina Anna V., Matveev Sergey V., Godovikov Ivan A., Aysin Rinat R., Moiseeva Aleksandra A., Turanov Alexander N., Karandashev Vasilii K., Brel Valery K.
Журнал: Polyhedron
Год издания: 2021
Издательство: Pergamon Press
Местоположение издательства: United States
Номер статьи: 115085
DOI: 10.1016/j.poly.2021.115085
Аннотация: Reaction of 1,2-bis(diphenylpsphoryl)benzene 1,2-[Ph2(O)P]2C6H4 (L) with f-element nitratesresulted in 1 : 1 and 1 : 2 complexes. The isolated complexes, namely, [UO2(L)(NO3)2]·MeCN (1),[UO2(L)2(NO3)](NO3)·MeCN (2), [Th(L)2(NO3)3](NO3)·MeCN·H2O (3),[La(L)2(NO3)3]·0.5MeCN·1.5H2O (4), and [Lu(L)2(NO3)2](NO3)·2MeCN (5) have beencharacterized by elemental analysis and IR spectroscopy. The structures of complexes 1, 2, and 5have been determined by single-crystal X-ray crystallography. Intraligand π-stacking andinterligand C–H… π interaction have been observed in the crystalline complexes. The π-stackingand C–H… π interaction energy in two uranyl complexes 1 and 2 have been estimated from Bader’sAIM theory calculations performed at the DFT level. Solution structure of all complexes has beeninvestigated by IR and multinuclear (1H, 13C, and 31P) NMR spectroscopy. The formation of 1 : 3complexes with lanthanum nitrate (IR, 31P NMR) has been examined. Preliminary extraction studyof U(VI), Th(IV), and Ln(III) from 2 M HNO3 into 1,2-dichloroethane have shown that ligand Lrecovers U(VI), Th(IV), and La(III) in the same extent as its tetraphosphoryl analog 1,2,4,5-[Ph2(O)P]4C6H2 (L') but it recovers Eu(III), and Lu(III) by several times better than L'.Furthermore, an improved modified method for the synthesis of ligand L has been suggested.
Добавил в систему: Айсин Ринат Равильевич

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Coordination and extraction properties of 1,2-bis(diphenylphosphoryl)-benzene toward f-block element nitrates: structural, spectroscopic and DFT characterization of the complexesстатья

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