title: Dicopper(II) trihydroxide cyanoureate dihydrate.
abstract: The title compound, poly[[mu-cyanoureato-tri-mu-hydroxido-dicopper(II)] dihydrate], {[Cu(2)(C(2)H(2)N(3)O)(OH)(3)].2H(2)O}(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 1) is coordinated to six hydroxide groups (4OH + 2OH), whilst the other two Cu atoms (symmetries 1 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 -NH(2) groups and the central cyanamide N atoms of organic anions associated with neighbouring layers.
authors: Department of Chemistry, University of Reading, Whiteknights, Reading, Berks RG6 6AD, England. a.m.chippindale@rdg.ac.uk
authors: Ann M
authors: AM
authors: Chippindale
authors: Simon J
authors: SJ
authors: Hibble
authors: Edward J
authors: EJ
authors: Bilbé