Synthesis and photophysical properties of rare earth complexes bearing silanediamido ligands Me 2 Si(NAryl) 2 2– (Aryl = Dipp, Mes) Full article
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New Journal of Chemistry
ISSN: 1369-9261 , E-ISSN: 1144-0546 |
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| Output data | Year: 2022, Volume: 46, Number: 5, Pages: 2351-2359 Pages count : 9 DOI: 10.1039/d1nj05722g | ||||
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Abstract:
A series of rare earth (RE) chloride complexes bearing silanediamido ligands (LAryl)2– = Me2Si(NAryl)22– with bulky substituents, Aryl = mesityl (Mes), and 2,6-diisopropylphenyl (Dipp) was synthesized by salt metathesis reactions....A series of rare earth (RE) chloride complexes bearing silanediamido ligands (LAryl)2– = Me2Si(NAryl)22– with bulky substituents, Aryl = mesityl (Mes), and 2,6-diisopropylphenyl (Dipp) was synthesized by salt metathesis reactions. Binuclear species [{RE(LAryl)(thf)2}2(μ-Cl)2] (REAryl; RE = Y, Gd, Tb, Sm, Aryl = Dipp; RE = Y, Gd, Tb, Aryl = Mes) crystallize from non-polar solvents. Deprotonation of the proligands H2LAryl by KH and n-BuLi was compared, advantages of both approaches are discussed. Formation of ate complexes [{RE(LAryl)(thf)(μ-Cl)2Li(thf)3}2(μ-Cl)2] (RE = Y, Tb) was detected when using n-BuLi. Recrystallization of the YDipp from pure thf led to the monomerization to the [Y(LDipp)Cl(thf)3] complex. Energies of the triplet states were determined for both ligands from the photoluminescence (PL) spectra of Gd complexes. The PL of Tb complexes in solid state and in a solution was studied, showing substantial sensitization by the (LAryl)2– ligands.
Cite:
Mironova O.A.
, Lashchenko D.I.
, Ryadun A.A.
, Sukhikh T.S.
, Bashirov D.A.
, Pushkarevsky N.A.
, Konchenko S.N.
Synthesis and photophysical properties of rare earth complexes bearing silanediamido ligands Me 2 Si(NAryl) 2 2– (Aryl = Dipp, Mes)
New Journal of Chemistry. 2022. V.46. N5. P.2351-2359. DOI: 10.1039/d1nj05722g WOS Scopus РИНЦ OpenAlex
Synthesis and photophysical properties of rare earth complexes bearing silanediamido ligands Me 2 Si(NAryl) 2 2– (Aryl = Dipp, Mes)
New Journal of Chemistry. 2022. V.46. N5. P.2351-2359. DOI: 10.1039/d1nj05722g WOS Scopus РИНЦ OpenAlex
Dates:
| Submitted: | Nov 30, 2021 |
| Accepted: | Dec 17, 2021 |
| Published online: | Dec 17, 2021 |
Identifiers:
| Web of science: | WOS:000742079000001 |
| Scopus: | 2-s2.0-85124178933 |
| Elibrary: | 48148985 |
| OpenAlex: | W4200152152 |