Dinuclear macrocycles and helicates based on organosilicon bis-dibenzoylmethane ligand

•A series of novel macrocycles and helicates have been synthesized.•Structure of complexes have been determined by X-ray analysis.•The thermal stability of the complexes was investigated by TGA. In this work, a series of novel macrocycles and helicates based on organosilicon bis-dibenzoylmethane ligand have been synthesized and characterized as well as their structures have been determined by X-ray analysis, MS, NMR and UV–Vis spectroscopy. The thermal stability of the complexes was estimated by thermal gravimetric analysis (TGA). Novel macrocycles and helicates based on organosilicon bis-dibenzoylmethane ligand have been developed. [Display omitted]