catena-Poly[dieth­yl(2-hydroxy­ethyl)­ammonium [[tetra-μ-acetato-κ(8) O:O′-dicuprate(II)(Cu—Cu)]-μ-acetato-κ(2) O:O′] dichloro­methane solvate]

The title compound, {(C(6)H(16)NO)[Cu(2)(CH(3)COO)(5)]·CH(2)Cl(2)}(n), consists of acetate-bridged Cu(2)(CH(3)COO)(4) units that are connected via another acetate anion at each terminus to form infinite anionic [{Cu(2)(CH(3)COO)(4)}(CH(3)COO)](n) chains along [100]. The connecting acetate is hydrogen bonded to the dieth­yl(2-hydroxy­ethyl)ammonium cation, and the dichloro­methane solvent mol­ecule fills the remaining voids in the structure. The O—Cu—Cu angles along the polymeric chain are nearly linear [175.49 (5)°], but individual O—Cu—Cu—O units along the chain are bent and rotated against each other at the bridging acetate ion. Translation of each Cu(2)(CH(3)COO)(4) unit along the chain, represented by the least-squares plane of the two copper ions along with four of the acetate O atoms, rotated these units by 35.16 (3)°.