linear conjugated oligothiophenes of variable length and different substitution pattern are ubiquitous in technologically advanced optoelectronic devices , though limitations in application derive from insolubility , scarce processability and chain - end effects . 
 this study describes an easy access to chiral cyclic oligothiophenes constituted by 12 and 18 fully conjugated thiophene units . 
 chemical oxidation of an 
 inherently chiral  sexithiophene monomer , synthesized in two steps from commercially available materials , induces the formation of an elliptical dimer and a triangular trimer endowed with electrosensitive cavities of different tunable sizes . 
 combination of chirality with electroactivity makes these molecules unique in the current oligothiophenes literature . 
 these macrocycles , which are stable and soluble in most organic solvents , show outstanding chiroptical properties , high circularly polarized luminescence effects and an exceptional enantiorecognition ability .