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Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Synthese und reaktivität von dienylmetall-verbindungen

1987; Elsevier BV; Volume: 320; Issue: 3 Linguagem: Inglês

10.1016/0022-328x(87)85062-3

ISSN

1872-8561

Autores

Ν. Kuhn, Hans Hermann Brüggemann, M. Winter, V.M. De Bellis,

Tópico(s)

Synthesis and characterization of novel inorganic/organometallic compounds

Resumo

CpCo(CO)2 is oxidised by [Cp2Fe]BF4 (Cp = C5H5) in the presence of neutral ligands L to give the dications [CpCoL3]2+ (L = SMe2, S(n-C4H9)2, PMe3, C5H5N, MeCN; Me = CH3). In [CpCo(SMe2)3]2+, sulfane ligands are substituted by neutral ligands L, LL and LLL, to give the complexes [CpCoL3]2+ (L = SeMe2, TeMe2, PMe3, P(OMe)3, AsMe3, SbMe3, t-C4H9NC, C5H5N, MeCN), [Cp-Co(LL)SMe2]2+ (LL = R2P(CH2)nPR2, n = 1, 2, R = C6H5; bipyridine, o-phenanthroline, neocuproin) and [CpCo(LLL)]2+ (LLL = RP(CH2CH2PR2)2, R = C6H5). The dications react with iodide resulting in the monocations [CpCoL2I]+ and [CpCo(LL)I]+. Azacobaltocinium cations [CpCo(C4R2H2N)]+ (R = H, CH3) are obtained by reaction of [CpCo(SMe2)3]2+ with metal pyrrolides. CpCo(CO)2 wird durch [Cp2Fe]BF4 (Cp = C5H5 in Gegenwart der Neutralliganden L zu den Dikationen [CpCoL3]2+ (L = SMe2, S(n-C4H9)2, PMe3, C5H5N, MeCN; Me = CH3) oxidiert. Neutralliganden L, LL und LLL substituieren die Sulfan-Liganden in [CpCo(SMe2)3]2+ unter Bildung der Komplexe [CpCoL3]2+ (L = SeMe2, TeMe2, PMe3, P(OMe)3, AsMe3, SbMe3, t-C4H9NC, C5H5N, MeCN), [CpCo(LL)SMe2]2+ (LL = R2P(CH2)nPR2, n = 1, 2, R = C6H5; Bipyridin, o-Phenanthrolin, Neocuproin) und [CpCo(LLL)]2+ (LLL = RP(CH2CH2PR2)2, R = C6H5). Die Dikationen reagieren mit Iodid zu den Monokationen [CpCoL2I]+ und [CpCo(LL)I]+. Durch Reaktion von [CpCo(SMe2)3]2+ mit Metall-Pyrroliden wurden die Azacobaltocinium-Kationen [CpCo(C4R2H2N)]+ (R = H, CH3) erhalten.

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