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Nickel and cobalt un-bridged tetraazamacrocycle acetate complexes from the literature for comparison to the cross-bridged complexes: (a) 37[Co(Bn2Cyclam)(OAc)]+ (b) 37[Ni(Bn2Cyclen)(OAc)]+ (c) 37[Ni (Bn2Cyclen)(OAc)(H2O)]+ (d) 38[Ni(Me4Cyclen)(OAc)]+ (e) 39[Ni(Cyclen) (OAc)]+ (f) 40[Ni(Bn1Cyclam)(OAc)]+. H atoms have been omitted for clarity.
