Crystal field distortion parameter of nickel hexammine complexes

Hexammine Nickel Complex: Cooperative Rotation of Six NH3Groups

“…4), hence, they are of the order of Zeeman splitting in EPR. Typical splttings of the electronic multiplets of Ni 2 + in crystal field are 104 cm-1 and the zerofield splitting in nickel hexammines is about 1 cm -1 [12][13][14].…”

Ligand field design enables quantum manipulation of spins in Ni2+ complexes

“…In the orbitally non-degenerate case, this can be achieved via incorporation of strong eld ligands, as D is inversely proportional to the energetic separation of excited states from the ground state. 25 Previously, the only examples of commercial frequency [26][27][28][29][30][31][32][33] which are exceptionally host-and counterion-dependent, due to the weak eld monodentate ligands and the exible primary coordination sphere. As a result, for a nickel coordination complex with the same coordinating ligands, D can vary by an order of magnitude as a function of counterion.…”