Temperature dependent photoluminescence down to 77 K of organotin molecular rotors: Eco-friendly synthesis, photophysical characterization, X-ray structures, and DFT studies.

Herein, we describe high quantum yields of organotin complexes in Me-THF at 77 K ( Φ F 37 and 67%) due to the rotational fixation of a terephthalohydrazide bridge. PET bottle waste was used as raw material to synthesize ligand and tin complexes.