A number of complexes of the form [Ni(F2BON: CR·CR′:NO)2] where R = R′ = H, CH3 or C6H5 and R = H, R′ = CH3 have been obtained by the addition of BF3·O(C2H5)2 to the parent nickel(II) glyoximates. The products isolted on reaction of these complexes with monodentate and bidentate nitrogenous bases have been characterized by microanalysis, visible, NMR and mass spectral data and by thermal and magnetic studies. In the main stable diamagnetic 1:1 adducts are obtained with the monodentate bases and paramagnetic 1:1 complexes with the bidentates chosen. The central metal atom may be displaced from the macrocycle using 1,2-diaminoethane with resultant salt formation, and an interesting reaction with iodomethane in the presence of base is reported. Postulates of metal stereochemistry are made with reference to earlier reported crystal structures. The type of adduct formed appears to be influenced by the choice of glyoxime substituents (R and R′).