| Abstract: | The title compound, polyμ‐cyanoureato‐tri‐μ‐hydroxido‐dicopper(II)] dihydrate], {Cu2(C2H2N3O)(OH)3]·2H2O}n, is a new layered copper(II) hydroxide salt (LHS) with cyanoureate ions and water molecules in the interlayer space. The three distinct copper(II) ions have distorted octahedral geometry: one Cu (symmetry ) is coordinated to six hydroxide groups (4OH + 2OH), whilst the other two Cu atoms (symmetries and 1) are coordinated to four hydroxides and two N atoms from nitrile groups of the cyanoureate ions (4OH + 2N). The structure is held together by hydrogen‐bonding interactions between the terminal –NH2 groups and the central cyanamide N atoms of organic anions associated with neighbouring layers. |
