Binuclear Chalcogenide Complexes of Samarium and Ytterbium With Pentamethylcyclopentadienyl Ligands

Konokhova, A. Yu.; Afonin, M. Yu.; Сухих, Т. С.; Konchenko, Sergey N.

doi:10.1134/s0022476620080090

Cited by 3 publications

(3 citation statements)

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“…However, [(C 5 Me 5 ) 2 Yb(μ-S)Yb(C 5 Me 5 ) 2 ] was isolated from the reaction mixture of [(C 5 Me 5 ) 2 Yb(THF) 2 ] and [(V Me Cp) 2 (μ-S)(μ,η 1:1 -S 2 )(μ,η 2:2 -S 2 )] ( Me Cp = C 5 H 4 Me). 211…”

Section: Reactivity As a Reducing Agentmentioning

confidence: 99%

“…Thus, a mixture of the mono-[(C 5 Me 5 ) 2 Yb(μ-Se)Yb(C 5 Me 5 ) 2 ] and the diselenides, [(C 5 Me 5 ) 2 Yb(μ-η 2 :η 2 -Se 2 )Yb(C 5 Me 5 ) 2 ] was isolated from the reaction of [(C 5 Me 5 ) 2 Yb(THF) 2 ] and [(V(C 5 H 4 Me) 2 (μ-Se)(μ,η 1:1 -Se 2 )(μ,η 2:2 -Se 2 )]. 211 [(C 5 Me 5 ) 2 Sm(μ-Te)Sm(C 5 Me 5 ) 2 ] was obtained from [(C 5 Me 5 ) 2 Sm(THF) 2 ] and [{V(nacnac)} 2 (μ-Te) 2 ] ((nacnac) = (HC(C(Me)NC 6 H 3 - i Pr 2 ) 2 )). 211…”

Section: Reactivity As a Reducing Agentmentioning

confidence: 99%

“…211 [(C 5 Me 5 ) 2 Sm(μ-Te)Sm(C 5 Me 5 ) 2 ] was obtained from [(C 5 Me 5 ) 2 Sm(THF) 2 ] and [{V(nacnac)} 2 (μ-Te) 2 ] ((nacnac) = (HC(C(Me)NC 6 H 3 - i Pr 2 ) 2 )). 211…”

Section: Reactivity As a Reducing Agentmentioning

confidence: 99%

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Divalent metallocenes of the lanthanides – a guideline to properties and reactivity

Schäfer

Kaufmann

Rösch³

et al. 2023

Chem. Soc. Rev.

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Section: Reactivity As a Reducing Agentmentioning

confidence: 99%

Section: Reactivity As a Reducing Agentmentioning

confidence: 99%

See 1 more Smart Citation

Divalent metallocenes of the lanthanides – a guideline to properties and reactivity

Schäfer

Kaufmann

Rösch³

et al. 2023

Chem. Soc. Rev.

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Dinuclear ytterbium(iii) benzamidinate complexes with bridging S₃²⁻, Se₂²⁻ and Te₂²⁻ ligands: synthesis, structure and magnetic properties

Ma,

Yu,

Zhou

et al. 2024

Dalton Trans.

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Reduction of phosphine sulfides and selenides by samarium(

Savkov

Сухих²,

Konchenko³

et al. 2022

Aust. J. Chem.

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The reductive action of the bulky SmII formamidinate complex [Sm(dippForm)2(thf)2] (dippForm− = HC(Ndipp)2 −, dipp = 2,6-diisopropylphenyl; thf = tetrahydrofuran) (1) on a series of phosphine chalcogenides (R3PE = Ph3PO, Ph3PS, Ph3PSe, n Bu3PS, n Bu3PSe) as well as Ph3AsS, has been investigated. The reactions are fast for the phosphine derivatives with E = Se and for Ph3AsS, and slow for the phosphine sulfides. They lead to mixtures of binuclear mono- and dichalcogenide complexes [(Sm(dippForm)2)2(µ-En )] (E = S (2), Se (3); n = 1, 2). The ratio of species with (µ-E) or (µ-η2:η2-E2) bridges depends on the nature of the chalcogenide reactant and its concentration, but even under its local excess the formation of the monochalcogenide is preferential. Both types of species form isostructural solid solutions. The dense outer packing of dippForm ligands in the complexes 2 and 3, leaving enough free space in the centre of the molecule, is thought to be the main reason for the geometrical similarity of mono- and dichalcogenides and for their ready co-crystallization. A reaction scheme is proposed, involving the coordination of the starting chalcogenide to the SmII centre with successive formation of E-centered transient radical species [Sm(dippForm)2(E˙)]. Contrary to the phosphine/arsine sulfides and selenides, the product of phosphine oxide coordination, [Sm(dippForm)2(OPPh3)] (4), was shown to be stable, while a similar complex with two phosphine oxide ligands, [Sm(dippForm)2(OPPh3)2] (5), was fortuitously crystallized at lower temperatures.

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Binuclear Chalcogenide Complexes of Samarium and Ytterbium With Pentamethylcyclopentadienyl Ligands

Cited by 3 publications

References 19 publications

Divalent metallocenes of the lanthanides – a guideline to properties and reactivity

Divalent metallocenes of the lanthanides – a guideline to properties and reactivity

Dinuclear ytterbium(iii) benzamidinate complexes with bridging S₃²⁻, Se₂²⁻ and Te₂²⁻ ligands: synthesis, structure and magnetic properties

Reduction of phosphine sulfides and selenides by samarium(

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Binuclear Chalcogenide Complexes of Samarium and Ytterbium With Pentamethylcyclopentadienyl Ligands

Cited by 3 publications

References 19 publications

Divalent metallocenes of the lanthanides – a guideline to properties and reactivity

Divalent metallocenes of the lanthanides – a guideline to properties and reactivity

Dinuclear ytterbium(iii) benzamidinate complexes with bridging S32−, Se22− and Te22− ligands: synthesis, structure and magnetic properties

Reduction of phosphine sulfides and selenides by samarium(

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Dinuclear ytterbium(iii) benzamidinate complexes with bridging S₃²⁻, Se₂²⁻ and Te₂²⁻ ligands: synthesis, structure and magnetic properties