1991
DOI: 10.1002/ange.19911030527
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Die tetramere Aluminium(I)‐Verbindung [{Al(η5‐C5Me5)}4]

Abstract: Eine bei Raumtemperatur stabile Aluminium(I)‐Verbindung ist das tetramere, η5‐koordinierte [{Al(C5Me5)}4] 1, das aus AlCl und [Mg(C5Me5)2] herstellbar ist. In diesem Cluster bilden vier Al‐Atome ein reguläres Tetraeder, und die Ebenen der C5Me5‐Ringe liegen nahezu parallel zur jeweils gegenüberliegenden Basisfläche des Tetraeders. Siehe auch Highlight auf S. 559.

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Cited by 238 publications
(69 citation statements)
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“…A breakthrough in the chemistry of group 13 elements was the preparation of Me 5 C 5 Al(I) and Me 5 C 5 Ga(I) in the group of Schnöckel [9,10]. These compounds have been obtained by the reaction of metastable Al(I)Cl or Ga(I)Cl solutions with Me 5 C 5 transfer agents.…”
Section: Half-sandwich Complexesmentioning
confidence: 99%
“…A breakthrough in the chemistry of group 13 elements was the preparation of Me 5 C 5 Al(I) and Me 5 C 5 Ga(I) in the group of Schnöckel [9,10]. These compounds have been obtained by the reaction of metastable Al(I)Cl or Ga(I)Cl solutions with Me 5 C 5 transfer agents.…”
Section: Half-sandwich Complexesmentioning
confidence: 99%
“…[1, [3][4][5][6][7] Die s-Donorund p-Acceptoreigenschaften dieser Liganden wurden ausführlich diskutiert (Abbildung 1) und lösten in manchen Fällen nicht wenige Kontroversen aus. [8][9][10] Solche Eigenschaften hängen stark von der Art des Diylsubstituenten R ab; so ist Cp*Ga ein sehr guter sDonor-Ligand, fungiert aber wegen der stark konkurrierenden p-Donoreigenschaften des Cp*-Fragments als schwacher p-Acceptor gegenüber Über-gangsmetallzentren.…”
unclassified
“…[1,10] Alkylsubstituenten bieten in dieser Hinsicht weniger Konkurrenz, sodass bei Metallkomplexen z. B. des {(Me 3 Si) 3 C}Ga-Liganden ein größerer p-Beitrag zur M-E-Bindung gefunden wird. [8] Setzt man diese Überlegung fort, so könnte man erwarten, dass "nackte" Gallium-oder Indiumkationen, die keinen Diylsubstituenten tragen, sehr starke p-Acceptoreigenschaften haben.…”
unclassified
“…[2] For the heavier Group 13 elements, synthetic routes to diyl ligands (of the type RED) and related base-stabilized systems have been developed recently, and their main-group and transition-metal coordination chemistries have been investigated. [1,[3][4][5][6][7] Thus, the fundamental s-donor and pacceptor properties of these ligands have been debated (Figure 1), in some cases arousing no small amount of controversy. [8][9][10] Such properties are strongly dependent on the nature of the diyl substituent R; thus, Cp*Ga is known to be a very good s-donor ligand but to function as a weak p acceptor towards transition-metal centers owing to strongly competing p donation from the Cp* fragment.…”
mentioning
confidence: 99%