“…These data indicate three unpaired electrons for Co(II). The magnetic moments of the Co(II) complexes at room temperature fall in the range 4–5 B.M., which is characteristic for mononuclear, high‐spin, tetrahedral Co(II) complexes with R′C(S)NHP(X)(OR) 2 (X = O, S) ligands 28–30. The diamagnetic character for the [ NiL I,II 2 ] complexes indicates the square‐planar arrangement.…”