Abstract: | A donor–acceptor compound, diaqua‐1κO,2κO‐[μ‐11,23‐dimethyl‐3,7,15,19‐tetraazatricyclo[19.3.1.19,13]hexacosa‐1(25),2,7,9,11,13(26),14,19,21,23‐decaene‐25,26‐diolato‐1κ4N3,N7,O25,O26:2κ4N15,N19,O25,O26]dizinc(II) diperchlorate bis(8‐methylquinoline) ethanol disolvate, [Zn2(C24H26N4O2)(H2O)2](ClO4)2·2C10H9N·2C2H6O, obtained by the reaction of a dinuclear zinc(II) complex of a Robson macrocycle (acceptor) and 8‐methylquinoline (donor), lies about an inversion centre and the coordination about the unique Zn atom is a distorted square pyramid. The fifth coordination site is occupied by the water molecule, Zn—O = 2.016 (2) Å, and the average macrocyclic Zn—O and Zn—N distances are 2.059 (6) and 2.059 (3) Å, respectively. |