Two three-dimensional cyano-bridged bimetallic cadmium(II) and copper(II)–copper(I) mixed-valence polymer compounds: Crystal structures and thermal stability analysis and magnetic properties

Two cyano-bridged cadmium(II) and copper(II)–copper(I) mixed-valence polymer compounds View the MathML source[CuII(en)2]{[CuII(en)2]2-μ-(CN)4-[Cd3Cu6I(CN)14]}1 and [CuII(en)2]0.5[CdCuI(CN)3] · Cl · H2O 2 (en = 1,2-ethanediamine) through systematically varying the solution environment have been synthesized and structurally characterized by single crystal X-ray diffraction analysis. The cyano anions connected the copper and cadmium centres with bidentate or tridentate bridging modes resulting in two complicated 3D networks for 1 and 2. Compound 1 has a rare 5,6-connected network, while compound 2 can be reduced to a 6-connected α-Po net. The magnetic and thermal properties of 1 and 2 are also studied.