The crystal structure of the title compound, poly[bis[Copper(I)-mu-(4,4'-bi
pyridyl)-N:N']-mu-dimolybdato-O:O'] O'], [Cu-2(C10H8N2)(2)(Mo2O7](n), consi
sts of (Mo2O7)(2-) units (with the central O atom lying on twofold symmetry
axes) and [Cu(4,4'-bipy)](n)(n+) chains (bipy = bipyridyl); the chains are
generated by a c-glide-plane operation. The (Mo2O7)(2-) units are covalent
ly bridged to two [Cu(4,4'-bipy)](n)(n+) chains, forming a complex with a b
ridged double-chain structure. The Cu-O and Cu-N distances are 2.191(3) and
1.933 (3) Angstrom, respectively.