1H NMR STUDY OF MIXED-LIGAND LANTHANIDE COMPLEXES. STOICHIOMETRY AND TEMPERATURE SENSITIVITY OF PARAMAGNETIC CHEMICAL SHIFTS OF PRASEODYMIUM β-DIKETONATES AND THEIR COMPOUNDS WITH 18-CROWN-6

1H NMR STUDY OF MIXED-LIGAND LANTHANIDE COMPLEXES. STOICHIOMETRY AND TEMPERATURE SENSITIVITY OF PARAMAGNETIC CHEMICAL SHIFTS OF PRASEODYMIUM β-DIKETONATES AND THEIR COMPOUNDS WITH 18-CROWN-6 Full article

Journal

Journal of Structural Chemistry
ISSN: 1573-8779 , E-ISSN: 0022-4766

Output data

Year: 2021, Volume: 62, Number: 8, Pages: 1184-1190 Pages count : 7 DOI: 10.1134/s0022476621080035

Authors

Babailov S.P. ¹ , Stabnikov P.A. ¹ , Tkachev S.V. ¹ , Kruppa A.I. ²

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2	Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Complexes [(Pr(DPM)3)2], [Pr(DPM)3(18-crown-6)], [(Pr(DPM)3)2(18-crown-6)], [Pr(DPM)(PTA)(18-crown-6)]+ and the temperature sensitivity of paramagnetic lanthanidine-induced shifts of these complexes in CDCl3 solution are characterized by 1H NMR. The NMR methods are used to estimate the possibility of forming inclusive complexes in CDCl3 solution upon the interaction of lanthanide tris-β-diketonates with 18-crown-6 in the case of a more branched ligand than PTA (e.g., DPM). Upon the interaction of [(Pr(DPM)3)2] and 18-crown-6, the [Pr(DPM)3(18-crown-6)] forms prevail in solution. The obtained results indicate that the studied coordination compounds can be considered as 1H NMR paramagnetic lanthanide probes for local temperature control in organic solutions using the analysis of paramagnetic lanthanidine-induced shifts.

Babailov S.P. , Stabnikov P.A. , Tkachev S.V. , Kruppa A.I.
1H NMR STUDY OF MIXED-LIGAND LANTHANIDE COMPLEXES. STOICHIOMETRY AND TEMPERATURE SENSITIVITY OF PARAMAGNETIC CHEMICAL SHIFTS OF PRASEODYMIUM β-DIKETONATES AND THEIR COMPOUNDS WITH 18-CROWN-6
Journal of Structural Chemistry. 2021. V.62. N8. P.1184-1190. DOI: 10.1134/s0022476621080035

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