Manganese(i) complexes with metal-to-ligand charge transfer luminescence and photoreactivity

Precious metal complexes with the d6 valence electron configuration often exhibit luminescent metal-to-ligand charge transfer (MLCT) excited states, which form basis for many applications in lighting, sensing, solar cells and synthetic photochemistry. Iron(ii) has received much attention as a possible Earth-abundant alternative, but to date no iron(ii) complex been reported show MLCT emission upon continuous-wave excitation. Manganese(i) same that of iron(ii), until now typically overlooked search cheap luminophores. Here we report isocyanide chelate ligands give access air-stable manganese(i) luminescence solution at room temperature. These compounds were successfully used photosensitizers energy- electron-transfer reactions shown promote photoisomerization trans-stilbene. The observable photoreactivity occurred from emissive state, whereas triplet energy originated ligand-centred 3?–?* state. is isoelectronic development 3d6 emitters photosensitizers. Now, using chelating ligands, have obtained luminescence, well photoreactivity.