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The structure of gold cyanide, AuCN, has been determined at 10 and 300 K using total neutron diffraction. The structure consists of infinite [bond]Au[bond](CN)[bond]Au[bond](CN)[bond] linear chains, hexagonally packed, with the gold atoms in sheets. The Au-C and Au-N bond lengths are found to be identical, with d(Au(-C/N) = 1.9703(5) A at 300 K. This work… (More)
CuCN has been found to be polymorphic. The structure of one form, which is isomorphous with AgCN, has been determined using the information provided by Bragg and diffuse neutron scattering. The polymorph of CuCN formed has been found to depend on the Cu/CN ratio used in its preparation.
Total neutron diffraction has yielded accurate bond lengths, Ag-C = Ag-N = 2.06 A and C-N = 1.16 A, for the disordered crystalline solid AgCN. This information cannot be obtained from analysis of Bragg scattering studies, because the (-Ag-CN-)(n) chains are randomly displaced along the chain axis relative to each other by a root-mean-square displacement of… (More)