Single-crystal characterization of Co7(OH)6(H2O)3(C4H4O4)4⋠7H2O; A new cobalt succinate identified through high-throughput synthesis

A new form of cobalt succinate has been discovered using high-throughput methods and its structure was solved by single crystal X-ray diffraction. Co7(C4H4O4)4(OH)6(H2O)3⋅7H2O crystallizes in the monoclinic space group P21/c with cell parameters: a=7.888(2)Å, b=19.082(6)Å, c=23.630(7)Å, β=91.700(5)°, V=3555(2)Å3, R1=0.0469. This complex structure, containing 55 crystallographically distinct non-hydrogen atoms, is compared to the previously reported nickel phase, characterized using ab initio structure solution from synchrotron powder diffraction data.