Chiral cyclic architectonics with tetraphenylethylenes: conformation immobilization, optical resolution and circularly polarized luminescence.

Chiral cyclic tetraphenylethylenes (TPEs) were synthesized by cyclization with chiral binaphthols. The helical conformation can be immobilized and multi-isomers can be separated resulting from ( Z / E )-isomerism and helical chirality of TPE. The chiral cyclic TPEs can emit deep blue circularly polarized luminescence (CPL) in both solution and film states.