
%0 Journal Article
%A Chen, XM 
%A Tong, ML 
%A Luo, YJ 
%A Chen, ZN 
%T Inclusion of 4,4'-Bipyridine (&#947;bpy) in Its Copper(II) Aqua Perchlorato Complex. Crystal Structure of [Cu( &#947;bpy )(H<sub>2</sub>O)<sub>2</sub>(ClO<sub>4</sub>)<sub>2</sub>]<sub>n</sub>.( &#947;bpy )<sub>n</sub>
%J Australian Journal of Chemistry
%D 1996/07/01
%V 49
%N 7
%P 835-838
%K 
%R https://doi.org/10.1071/CH9960835
%U https://www.publish.csiro.au/paper/CH9960835 
%X An example of a 4,4'-bipyridine ( &#947;bpy ) clathrate in its copper(II) complex has been established. The compound, [Cu( &#947;bpy )(H2O)2(ClO4)2]n.( &#947;bpy )n, crystallizes in the monoclinic space group C2/c with a 16.651(3), b 11.089(2), c 14.360(3) &#506;, &#946; 116.45(3)&#176;, V 2373.9(8)&#506;3. The crystal structure comprises &#947;bpy -bridged linear polymeric [Cu( &#947;bpy )(H2O)2(ClO4)2]n chains, where the copper atom, located on a crystallographic twofold axis, is coordinated in an elongated octahedral environment by two nitrogen atoms of the bridging &#947;bpy  ligands (Cu-N 1.998(4)&#506;) and two water molecules (Cu-O 1.968(3)&#506;) at the equatorial positions, and two perchlorate oxygen atoms at the axial positions (Cu-O 2.414(4)&#506;). The chains are interconnected by hydrogen bonds between the aqua ligands and the uncoordinated perchlorate oxygen atoms to form two-dimensional layers with cavities each enclosing a &#947;bpy molecule. Hydrogen bonding between the aqua ligands and the nitrogen atoms of the solvate &#947;bpy molecules further extends the structure into a three-dimensional network in the solid. 
