- methyl - 2 - pyrone)cobalt(II) bis(dimethylformamide), afforded crystals suitable for X-ray diffraction analysis, and its crystalline and molecularstructures are reported. The crystals are triclinic, space group P1, with a = 8.290(1), b = 9.570(2), c = 7.731(1) A, α = 94.16(2), β = 101.52(2), γ = 85.15(2)°, V = 597.9(2) A3, Z = 1. Least-squares refinement of the structure based on 3088 observations