A NOVEL ARYLLITHIUM LITHIUM BROMIDE COMPLEX CONTAINING AN ANIONIC PENTADENTATE ORGANYLPOLYAMINE SYSTEM ENFOLDING 2 LITHIUM CENTERS

Authors
WEHMANOOYEVAAR ICM KAPTEIJN GM GROVE DM SPEK AL VANKOTEN G
Citation
Icm. Wehmanooyevaar et al., A NOVEL ARYLLITHIUM LITHIUM BROMIDE COMPLEX CONTAINING AN ANIONIC PENTADENTATE ORGANYLPOLYAMINE SYSTEM ENFOLDING 2 LITHIUM CENTERS, Journal of organometallic chemistry, 452(1-2), 1993, pp. 30000001-30000003
Citations number
19
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Journal of organometallic chemistry → ACNP
ISSN journal
0022328X
Volume
452
Issue
1-2
Year of publication
1993
Pages
30000001 - 30000003
Database
ISI
SICI code
0022-328X(1993)452:1-2<30000001:ANALBC>2.0.ZU;2-W
Abstract
The aryllithium compound Li2[C6H3{CH2N(Me)CH2CH2NMe2}2-2,6]Br, which h as been characterized by an X-ray crystallographic determination and b y NMR spectroscopy, was obtained from the reaction of [C6H3Br{CH2N(Me) CH2CH2NMe2}2-2,6] with 2 equivalents of (n)BuLi. The lithium compound has a novel structural feature: a Li2ArBr core in which the bromide is bridge-bonded (LiBrLi' 64.8(2)-degrees) and C(ipso) is involved in a three-centre two electron (3c-2e) bond (LiCLi' 72.2(2)-degrees). The c oordination sphere of each lithium atom is completed by coordination w ith the two N-donor atoms of the ortho-CH2N(Me)CH2CH2NMe2 substituents .