 Despite heavy teaching loads, between 1942 and 1947 they reported complexes of rhodium, iridium, and osmium in seventeen papers in the Journal and Proceedings of the Royal Society of New South Wales.One of Nyholm’s early successes was the preparation of an octahedral complex of trivalent nickel [Ni(diars)2Cl2]Cl, by aerial oxidation of the red salt of bivalent nickel [Ni(diars)2]Cl2.He also described stable complexes of quadrivalent nickel such as the deep blue [Ni(diars)2Cl2] [ClO4]2, by nitric acid oxidation of the trivalent complex.