Synthesis and X-ray structures of tetralithium derivatives of tert-butylcalix[4]arene containing unique Li–O cores based on a square-pyramidal geometry

Autor: G. Davidson, Matthew, A. K. Howard, Judith, Lamb, Sarah, W. Lehmann, Christian
Zdroj: Chemical Communications; September 7, 1997, Vol. 1997 Issue: 17 p1607-1608, 2p
Abstrakt: Tetralithiation of tert-butylcalix[4]arene in the presence of hmpa (hexamethylphosphoramide) results in the isolation of either a monomeric complex in which LiOH is incorporated into an Li5O5 core based on an isolated square pyramid of Li atoms, or a dimeric LiOH-free species containing an Li8O8 core in which the same structural motif is maintained by edge-sharing of two square pyramids of Li atoms.
Databáze: Supplemental Index