A Convenient Synthesis of Cyclopentadienylgallium - The Awakening of a Sleeping Beauty in Organometallic Chemistry

Solid “GaI” reacts with NaCp to yield (η5‐cyclopentadienyl)gallium (GaCp) (1). During the synthesis the side product, CpGa→GaCp2I (2), with a rare gallium–gallium donor–acceptor bond could be isolated. The reaction of 1 with B(C6F5)3 affords CpGa→B(C6F5)3 (4). The molecular structures of 2 and 4, wh...

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Bibliographic Details
Published in:European Journal of Inorganic Chemistry 2011-09, Vol.2011 (25), p.3681-3685
Main Authors: Schenk, Christian, Köppe, Ralf, Schnöckel, Hansgeorg, Schnepf, Andreas
Format: Article
Language:English
Subjects:
Cyclopentadienyl ligands
Gallium
Main group elements
Subvalent compounds
Synthesis design
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Summary:Solid “GaI” reacts with NaCp to yield (η5‐cyclopentadienyl)gallium (GaCp) (1). During the synthesis the side product, CpGa→GaCp2I (2), with a rare gallium–gallium donor–acceptor bond could be isolated. The reaction of 1 with B(C6F5)3 affords CpGa→B(C6F5)3 (4). The molecular structures of 2 and 4, which contain the first GaCp moieties, are presented. The convenient synthesis of 1 needs only standard laboratory equipment and certainly opens the door for 1 to become a versatile reagent in organometallic chemistry; awakening the sleeping beauty GaCp nearly twenty years after its initial discovery. An easy synthesis – that can be carried out with standard laboratory equipment – of (η5‐cyclopentadienyl)gallium (GaCp) is presented as the kiss to awake this sleepingbeauty in organometallic chemistry.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201100672