Synthesis and photophysical properties of rare earth (La, Nd, Gd, Y, Ho) complexes with silanediamido ligands bearing a chelating phenylbenzothiazole chromophore

A new silanediamine ligand L 2− bearing planar Ph-benzothiazole groups gives complexes [LnL 2 ] − with larger Ln cations (La, Nd, Gd, Y), and [HoLCl 2 Li(thf) 2 ]. Their luminescence was investigated, and the triplet state energy of the ligand was estimated.