“…[8][9][10] Tp − , the first example of a scorpionate, is a homoscorpionate: all of the donor sites are equivalent ( pyrazole N); on the other hand, heteroscorpionates are an evolution of scorpionates, defined as anionic, 6e − donor, face-capping ligand where not all three donor sites are identical. 11 Most research efforts involving scorpionates focus on generating different types of homologous scorpionate ligands (and derivative metal-scorpionate complexes) including: trisimidazolylborate, 12 trisbenzotriazolylborate, 13 trismercaptoarylborates and phenyltris(2-pyridyl) borates, 14 and tris(2-pyridyl)amines/phosphines. 15 We recommend the following reviews by Marques and coworkers for f-element scorpionate materials 3,4 and Smith, 2 and Pawar et al, 14 for the versatility of scorpionate ligands in coordination chemistry.…”