Poly[tris-(2-amino-butan-1-ol)copper(II) [hexa-kis-μ 2 -cyanido-κ 12 C : N -tetra-copper(I)] bis-(2-amino-butan-1-olato)aqua-copper(II) monohydrate].

The title structure, {[Cu(C 4 H 11 NO) 3 ][Cu 4 (CN) 6 ]·[Cu(C 4 H 10 NO) 2 (H 2 O)]·H 2 O} n , is made up of diperiodic honeycomb Cu I CN networks built from [Cu 4 (CN) 6 ] 2- units, together with two independent Cu II complexes: six-coord-inate [Cu(CH 3 CH 2 CH(NH 2 )CH 2 OH) 3 ] 2+ cations, and five-coordinate [Cu(CH 3 CH 2 CH(NH 2 )CH 2 O) 2 ·H 2 O] neutral species. The two Cu II complexes are not covalently bonded to the Cu I CN networks. Strong O-H⋯O hydrogen bonds link the Cu II complexes into pairs and the pairs are hydrogen bonded into chains along the crystallographic b axis via the hydrate water mol-ecule. In addition, O-H⋯(CN) and N-H⋯(CN) hydrogen bonds link the cations to the CuCN network. In the honeycomb polymeric moiety, all bridging cyanido ligands are disordered over two orientations, head-to-tail and tail-to-head, with occupancies for C and N atoms varying for each CN group.