‘Inverse crown ether’ complexes extended to group 12 through the syntheses of [Na2Zn2(HMDS)4(O)] and [{K2Zn2(HMDS)4(O2)x(O)y}∞]

Abstract

The first sodium–zinc and potassium–zinc members of the inverse crown ether family, an emerging class of heterometallic macrocyclic amides previously limited to alkali metal–magnesium combinations, have been synthesised and crystallographically characterised.