Crystal structure of the tetrahydrofuran disolvate of a 94:6 solid solution of [<i>N</i><sup>2</sup>,<i>N</i><sup>6</sup>-bis(di-<i>tert</i>-butylphosphanyl)pyridine-2,6-diamine]dibromidomanganese(II) and its monophosphine oxide analogue
Acta crystallographica. Section E, Crystallographic communications