Synthesis, structure, and luminescent properties of neutral tris-complexes of Eu3+ and Sm3+ with 4,4,5,5,6,6,6-heptafluoro-1-(1-methyl-1H-pyrazol-4-yl)hexane-1,3-dione.

Autor:	Metlin, M. T., Belousov, Yu. A., Datskevich, N. P., Kiskin, M. A., Korshunov, V. M., Metlina, D. A., Taydakov, I. V.
Předmět:	SAMARIUM ELECTRONIC excitation EUROPIUM X-ray diffraction COORDINATION compounds ENERGY transfer
Zdroj:	Russian Chemical Bulletin; Oct2022, Vol. 71 Issue 10, p2187-2198, 12p
Abstrakt:	The reaction of 4,4,5,5,6,6,6-heptafluoro-1-(1-methyl-1H-pyrazol-4-yl)hexane-1,3-dione (HPyrC3F7) with freshly precipitated hydrated europium(ɪɪɪ) and samarium(ɪɪɪ) hydroxides in EtOH afforded crystalline complexes of the composition [Ln(PyrC3F7)3(EtOH)2], the features of their formation depending on the stoichiometric ligand/metal ratios were studied. The structure and composition of the complexes were characterized by physicochemical methods, including single-crystal X-ray diffraction. The luminescent properties of these compounds in the crystalline state and in solutions were studied in detail. Possible ways of transferring electronic excitation in the complex [Eu(PyrC3F7)3(EtOH)2] were considered. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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