A series of cyclopentadienyl lanthanum complexes with metalloid germanium clusters
A series of cyclopentadienyllanthanum complexes with the disilylated metalloid germanium cluster [Ge9(Hyp)2]2- [Hyp = Si(SiMe3)3] has been prepared and fully characterized. The synthetic procedure is based on the salt metathesis reaction of two different cyclopentadienyllanthanum diiodides CpLaI2 (C...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
July 10, 2024
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| In: |
Inorganic chemistry
Year: 2024, Jahrgang: 63, Heft: 43, Pages: 20197-20204 |
| ISSN: | 1520-510X |
| DOI: | 10.1021/acs.inorgchem.4c01082 |
| Online-Zugang: | Resolving-System: https://doi.org/10.1021/acs.inorgchem.4c01082 Verlag, lizenzpflichtig, Volltext: https://pubs.acs.org/doi/10.1021/acs.inorgchem.4c01082 
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| Verfasserangaben: | Kevin Woern, Andrey I. Poddel’sky, Alex Mayer, Claudio Schrenk, Andreas Schnepf, and Svetlana V. Klementyeva |
MARC
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| 245 | 1 | 2 | |a A series of cyclopentadienyl lanthanum complexes with metalloid germanium clusters |c Kevin Woern, Andrey I. Poddel’sky, Alex Mayer, Claudio Schrenk, Andreas Schnepf, and Svetlana V. Klementyeva |
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| 520 | |a A series of cyclopentadienyllanthanum complexes with the disilylated metalloid germanium cluster [Ge9(Hyp)2]2- [Hyp = Si(SiMe3)3] has been prepared and fully characterized. The synthetic procedure is based on the salt metathesis reaction of two different cyclopentadienyllanthanum diiodides CpLaI2 (Cp: Cp*, pentamethylcyclopentadienyl; Cpttt, 1,2,4-tri-tert-butylcyclopentadienyl) with K2[Ge9(Hyp)2] in tetrahydrofuran (THF) with a subsequent extraction with n-hexane. The composition of the obtained compounds and the mode of coordination of the germanium cluster to the rare-earth metal are strongly influenced by the steric demand of the cyclopentadienyl ligands and the crystallization conditions. The centrosymmetric dimeric compounds with the common formula [CpLa(solv)(η2,3-Ge9(Hyp)2)]2 [1, Cp = Cp*, solv-THF; 2, Cp = Cpttt, solv-NCCH2C(Me)NSiMe3] have been isolated by the slow evaporation of a n-hexane solution, while a mononuclear complex [CptttLa(THF)2(η3-Ge9(Hyp)2)] (4) was found by crystallization from THF. The repeated recrystallization of 1 from n-hexane afforded the asymmetric dimer [Cp*La(THF)(η2,3-Ge9(Hyp)2)][Cp*La(η2,3-Ge9(Hyp)2)] (3) with only one coordinated THF molecule. | ||
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