The most recent examples of TBC [8]-supported Co clusters are a family of heterometallic Co-Li/Na species reported in 2022. The complex [Co II 2Li8(OH)2(TBC [8])Br2(MeCN)4(THF)6] (19) was made from the reaction of CoBr2, H8TBC [8], and LiO t Bu in THF (Fig. ). The metallic skeleton of 19 describes three edge sharing [CoxLi4x] squares, connected to one additional Li ion at each end. This gives it a ladder-or rod-like appearance. In the centre lies a [Co2Li2] square, two edges being singly bridged by a µ-O(Ph) atom from the TBC [8] ligand, with the other two edges being doubly bridged by two µ4-OH -and two µ-Br -ions. The µ4-OH -ions further bridge to two Li ions on each side of the square, thus forming [CoLi3] squares on each side of the central square. The three remaining edges of these squares are singly bridged by a µ2/3-O(Ph) atom from the TBC [8] ligand. The µ3-O(Ph) atom further bridges to a single Li ion at each end of the cluster, forming a [Li3O] triangle. All ten metal ions are four coordinate and in distorted tetrahedral geometries. The coordination spheres of the Li ions are completed by a combination of THF and MeCN molecules. The TBC [8] ligand is fully deprotonated and adopts the pleated-loop conformation, with six/two O(Ph) atoms being µ2/3-bridging, respectively.