Two new cyclometallated platinum(II) complexes have been prepared that incorporate a terdentate N^C^N-coordinating ligand and a monodentate acetylide co-ligand. The complexes, namely [PtL– C^C–C6H3F2] and [PtL 6–C^C–C6H3F2] (where HL 3 1⁄4 5-methyl-1,3-di(2-pyridyl)benzene; HL 1⁄4 5-mesityl-1,3-di(2-pyridyl)benzene; H–C^C–C6H3F2 1⁄4 3,5-difluorophenylacetylene), were prepared by ligand metathes...