N3-Ligated Ni(ii) diketonate complexes are air stable and do not exhibit oxidative cleavage within the diketonate ligand under aerobic conditions.

Six-coordinate Cu(ii) diketonate complexes were isolated and characterized; TPA-ligated Cu(ii) chlorodiketonate derivatives exhibit anaerobic retro-Claisen reactivity.

Illumination of aerobic acetonitrile solutions of bipyridine-ligated Co(ii) chlorodiketonate complexes results in O2-dependent aliphatic C–C bond cleavage with high 18O incorporation.

Illumination of a 3-hydroxybenzo[g]quinolone with visible light results in CO release via two different reaction pathways.

The compound [(bdippza)2Zn], where bdippza is bis­(3,5-diiso­propyl­pyrazol-1-yl)acetate, possesses inversion symmetry and the ZnII atom is located on the special position of the P21/c space group. The zinc atom is coordinated by two bdippza ligands resulting in a six-coordinate distorted octa­hedral geometry.