A dicopper (II) complex of a new octaaza macrocycle: a receptor in the entatic state
Abstract
In the crystallographically characterized macrocyclic complex [Cu2L(MeCN)2][F3CSO3]4·2 MeCN the copper ions adopt a highly distorted five-coordinate geometry; relaxation to a more regular octahedral geometry on incorporation of a bridging substrate is demonstrated by the structure of [Cu2L(µ-CN)(MeCN)2][ClO4]3.