Novel Fe(<scp>ii</scp>) spin crossover complexes involving a chalcogen-bond and π-stacking interactions with a paramagnetic and nonmagnetic M(dmit)<sub>2</sub> anion (M = Ni, Au; dmit = 4,5-dithiolato-1,3-dithiole-2-thione)
A novel Fe(ii) complex with a π-radical anion exhibited a complete spin crossover transition with a stable paramagnetic state due to a strong chalcogen-bond and π-stacking interactions.
The synthesis of novelthiazole-containingcomplexingagents and their luminescence properties with EuIII and TbIII ions are reported. One of these terpyridine analogues was also tested as an EuIII labelling reagent, and its luminescence properties as an antibody conjugate were studied.