Unexpected neutral aza-macrocycle complexes of sodium

Abstract

Highly unusual Na+ complexes with neutral tri- and tetra-amines are isolable in good yield from the reaction of NaBArF with the amine in organic media. Structural characterisation reveals primary Na–N bonding, including an unusual sandwich cation [Na(Me3tacn)2]+, derived from homoleptic N6-coordination via two Me3-tacn ligands, and the distorted 5-coordinate [Na(thf)(Me4cyclam)]+. © 2014 The Partner Organisations.