The crystallographic observation of molecular lithium oxide: synthesis andsolid-state structure of [Me2AlN(2-C5H4N)Ph]Li-2 center dot 2THF

Authors
Armstrong, DR Davies, RR Linton, DJ Snaith, R Schooler, P Wheatley, AEH
Citation
Dr. Armstrong et al., The crystallographic observation of molecular lithium oxide: synthesis andsolid-state structure of [Me2AlN(2-C5H4N)Ph]Li-2 center dot 2THF, J CHEM S DA, (19), 2001, pp. 2838-2843
Citations number
72
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
ISSN journal
14727773 → ACNP
Issue
19
Year of publication
2001
Pages
2838 - 2843
Database
ISI
SICI code
1472-7773(20011007):19<2838:TCOOML>2.0.ZU;2-N
Abstract
The reaction of Me2Al[N(2-C5H4N)Ph], 1. with 1 equiv. (Me3Si)(2)NLi affords the lithium aluminate Me2Al[N(SiMe3)(2)][N(2-C5H4N)Ph]Li, 2, which exhibit s solvent dependent reactivity towards oxygen. In toluene 2 appears to resi st oxygenation but in the presence of THF it reacts to afford the new compl ex [Me2AlN(2-C5H4N)-Ph](2)(O)Li-2. 2THF-, 3. X-Ray diffraction data reveal that 3 has a butterfly-type Al2Li2 bimetallic core with two equivalents of reformed 1 stabilising discrete, molecular lithium oxide. The structures of 1-3 are probed theoretically.