A Novel Aryllithium : Lithium Bromide Complex Containing an Anionic Pentadentate Organylpolyamine System Enfolding two Lithium Centers
Files
Publication date
1993
Authors
Koten, G. van
Wehman-Ooyevaar, I.C.M.
Kapteijn, G.M.
Grove, D.M.
Spek, A.L.
Editors
Advisors
Supervisors
Document Type
Article
Metadata
Show full item recordCollections
License
Abstract
The aryllithium compound Li2[C6H3CH2N(Me)CH2CH2NMe22 2,6]Br, which has been characterized by an X-ray crystallographic determination and by NMR spectroscopy, was obtained from the reaction of [C6H3Br(CH2N(Me)CH2CH2NMe2)2-2,6] with 2 equivalents of nBuLi. The lithium compound has a novel structural feature: a Li2ArBr core in which the bromide is bridge-bonded (LiBrLi 64.8(2)) and Cipso is involved in a three-centre two electron (3c-2e) bond (LiCli 72.2(2)). The coordination sphere of each lithium atom is completed by coordination with the two N-donor atoms of the ortho-CH2N(Me)CH2CH2NMe2 substituents.