Formation of a Spiral-Shaped Inorganic−Organic Hybrid Chain, [Cu^II(2,2‘-bipy)(H₂O)₂Al(OH)₆Mo₆O₁₈]<i>_n</i><i>ⁿ</i>^-: Influence of Intra- and Interchain Supramolecular Interactions

A novel chainlike coordination polymer [CuII(2,2‘-bipy)(H2O)2Al(OH)6Mo6O18]nn-, formed from a heteropolyanion [Al(OH)6Mo6O18]3- as a building unit and a copper(II) complex fragment, [CuII(2,2‘-bipy)(H2O)2]2+, as a linker, provides the first example of an extended structure based on an Anderson type of polyanion and a transition metal complex with organic ligand. The intra- and interchain O−H···O hydrogen-bonding interactions are seemingly responsible for the spiral shape of this chain. Crystal data: triclinic space group P1̄, a = 11.2253(18) Å, b = 14.5194(17) Å, c = 15.2672(10) Å, α = 112.191(8)°, β = 106.693(9)°, γ = 93.916(13)°, and Z = 2.