(1,4,7,10,13,16-Hexaoxacyclooctadecane-κ<sup>6</sup> <i>O</i>)bis(tetrahydrofuran-κ<i>O</i>)potassium bis[(1,2,3,4-η)-anthracene]cobalt(−I) tetrahydrofuran monosolvate
Acta crystallographica. Section E