Functionalized Trifluoromethyl-Containing Lithium β-Diketonate in the Synthesis of Homo- and Heteronuclear Complexes of Rare-Earth Metals

Kudyakova, Yulia S.; Слепухин, П. А.; Ганебных, И. Н.; Burgart, Ya. V.; Салоутин, В. И.; Bazhin, D. N.

doi:10.1134/s1070328421040059

Cited by 7 publications

(9 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…La…La distance in dimer ~3.8 Å. A similar dimeric complex [La(L 2 ) 3 ] 2 has been reported before [ 16 ]. For comparison, in La 2 (tmhd) 6 , the La…La distance is ~4 Å, and there are only two bridging oxygen atoms, C.N.…”

Section: Resultssupporting

confidence: 76%

“…So far, for dimethoxy-substituted lanthanide diketonates, the structure of homometallic ([La(L 2 ) 3 ] 2 ) and heterometallic complexes with alkali metals has been reported, where the coordination of metal cations is also stabilized due to bridging bonds involving methoxy groups, about half of which remain free [ 13 , 14 , 15 , 16 ]. The isolated compounds exhibit discrete and polymeric structures, but volatility was not reported.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structure and Properties of Heterometallics Based on Lanthanides and Transition Metals with Methoxy-β-Diketonates

et al. 2022

View full text Add to dashboard Cite

The possibility of obtaining volatile polynuclear heterometallic complexes containing lanthanides and transition metals bound by methoxy-β-diketonates was studied. New compounds were prepared by cocrystallization of monometallic complexes from organic solvents. Ln(tmhd)3 were used as initial monometallic complexes (Ln = La, Pr, Sm, Gd, Tb, Dy, Lu; tmhd = 2,2,6,6-tetramethylheptane-3,5-dionate) in combination with TML2 in various ratios (TM = Cu, Co, Ni, Mn; L: L1 = 1,1,1-trifluoro-5,5-dimethoxypentane-2,4-dionate, L2 = 1,1,1-trifluoro-5,5-dimethoxy-hexane-2,4-dionate, L3 = 1,1,1-trifluoro-5-methoxy-5-methylhexane-2,4-dionate). Heterometallic complexes of the composition [(LnL2tmhd)2TM(tmhd)2] were isolated for light lanthanides Ln= La, Pr, Sm, Gd, and L= L1 or L2. By single crystal XRD, it has been established that heterometallic compounds containing La, Pr, Cu, Co, and Ni are isostructural linear coordination polymers of alternating mononuclear transition metal complexes and binuclear heteroleptic lanthanide complexes, connected by donor–acceptor interactions between oxygen atoms of the methoxy groups and transition metal atoms. A comparison of powder XRD patterns has shown that all heterometallic complexes obtained are isostructural. Havier lanthanides Ln = Tb, Dy, Lu did not form heterometallics. Instead, homometallic complexes Ln(L3)3 were identified for Ln = Dy, Lu as well as for Ln = La. The thermal properties of the complexes were investigated by TG-DTA and vacuum sublimation tests. The heterometallic complexes were found to be not volatile and decomposed under heating to produce inorganic composites of TM oxides and Ln fluorides. In contrast, Ln(L3)3 is volatile and may be sublimed in a vacuum. Results of magnetic measurements are discussed for several heterometallic and homometallic complexes.

show abstract

Section: Resultssupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Heterometallics Based on Lanthanides and Transition Metals with Methoxy-β-Diketonates

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The structures of CF 3 -containing [Ln-Li] β-diketonates 1-4, 7 and 16 have been described before [66,68,70]. In this work, we have synthesized and characterized heterometallic complexes 5, 6, 8-15.…”

Section: Structure Of Dinuclear [Ln-li] β-Diketonatesmentioning

confidence: 99%

“…Ln III -Li I diketonates 1-16 were synthesized through the reaction of functionalized fluorinated diketonates with corresponding lanthanide(III) chloride in methanol or ethanol as a solvent (Schemes 1 and 2), Table 1) according to the previous reports [66,68,70]. Changing the solvent from methanol to ethanol leads to the formation of heterometallic diketonate 16, in which the geometry of the [LnO 8 ] coordination polyhedron and crystal packing differ from those of complex 4 [66].…”

Section: Synthesis Of Dinuclear [Dy-li] β-Diketonatesmentioning

confidence: 99%

See 1 more Smart Citation

Perfluoroalkyl Chain Length Effect on Crystal Packing and [LnO8] Coordination Geometry in Lanthanide-Lithium β-Diketonates: Luminescence and Single-Ion Magnet Behavior

Smirnova

Edilova

Кискин

et al. 2023

IJMS

View full text Add to dashboard Cite

Functionalized perfluoroalkyl lithium β-diketonates (LiL) react with lanthanide(III) salts (Ln = Eu, Gd, Tb, Dy) in methanol to give heterobimetallic Ln-Li complexes of general formula [(LnL3)(LiL)(MeOH)]. The length of fluoroalkyl substituent in ligand was found to affect the crystal packing of complexes. Photoluminescent and magnetic properties of heterobimetallic β-diketonates in the solid state are reported. The effect of the geometry of the [LnO8] coordination environment of heterometallic β-diketonates on the luminescent properties (quantum yields, phosphorescence lifetimes for Eu, Tb, Dy complexes) and single-ion magnet behavior (Ueff for Dy complexes) is revealed.

show abstract

Synthesis and structure of homoleptic copper complexes based on fluorinated functionalized 1,3-diketones

et al. 2021

View full text Add to dashboard Cite

Functionalized Trifluoromethyl-Containing Lithium β-Diketonate in the Synthesis of Homo- and Heteronuclear Complexes of Rare-Earth Metals

Cited by 7 publications

References 41 publications

Structure and Properties of Heterometallics Based on Lanthanides and Transition Metals with Methoxy-β-Diketonates

Structure and Properties of Heterometallics Based on Lanthanides and Transition Metals with Methoxy-β-Diketonates

Perfluoroalkyl Chain Length Effect on Crystal Packing and [LnO8] Coordination Geometry in Lanthanide-Lithium β-Diketonates: Luminescence and Single-Ion Magnet Behavior

Synthesis and structure of homoleptic copper complexes based on fluorinated functionalized 1,3-diketones

Contact Info

Product

Resources

About