The pentadecadentate phosphazenate [{2-(MeO)C6H4N}6P3N 3]6−: chelation of twelve lithium ions by a single ligand

Abstract

The hexaprotic phosphazene {2-(MeO)C₆H₄NH}₆P₃N ₃ reacts with 12 equivalents of BuⁿLi in thf to give the monomeric dodecanuclear complex (thf)₆Li₁₂[{2-(MeO)C₆H₄N }₆P₃N₃](CH₂CHO) ₆ which contains six enolate anions resulting from fragmentation of thf; the hexaanionic pentadecadentate phosphazenate ligand [{2-(MeO)C₆H₄N}₆P₃N ₃]⁶⁻ accommodates a total of twelve lithium ions in bidentate chelation sites.