Bis(1,10-phenanthroline-κ²N,N′)(sulfato-κ²O,O′)nickel(II) butane-2,3-diol monosolvate

In the title compound, [Ni(SO₄)(C₁₂H₈N₂)₂]·C₄H₁₀O₂, the Ni^II ion is six-coordinated by four N atoms from two chelating 1,10-phenanthroline ligands and two O atoms from an O,O′-bidentate sulfate anion, resulting in a distorted octa­hedral geometry for the metal ion. The dihedral angle between the two chelating N₂C₂ groups is 83.82 (12)°. The Ni^II ion, the S atom and the mid-point of the central C—C bond of the butane-2,3-diol solvent mol­ecule lie on a twofold rotation axis. In the crystal, the complex mol­ecules and solvent mol­ecules are held together by pairs of symmetry-related O_diol—H...O_sulfate hydrogen bonds involving the uncoordinating O atoms of the sulfate ions. The solvent mol­ecule is disordered over two sets of sites with site occupancies of 0.450 (9) and 0.550 (9).

Bis(1,10-phenanthroline-κ²N,N′)(sulfato-O)copper(II) propane-1,3-diol monosolvate

In the title compound, [Cu(SO₄)(C₁₂H₈N₂)₂]·C₃H₈O₂, the Cu^II ion is bonded to two chelating 1,10-phenanthroline (phen) ligands and one O atom from a monodentate sulfate ligand in a distorted square-based pyramidal arrangement, with the O atom in a basal site. The two chelating N₂C₂ groups subtend a dihedral angle of 71.10 (15)°. In the crystal, the solvent mol­ecule forms two O—H...O hydrogen bonds to its adjacent complex mol­ecule. The chosen crystal was found to be a racemic twin; the presence of pseudosymmetry in the structure suggests the higher symmetry space group C2/c, but attempts to refine the structure in this space group resulted in an unsatisfactory model and high R and wR values.