錯体型ドーパントへの系統的なブロモ基導入によるキラルネマチック液晶のらせん形成機構解析

抄録

Nematic liquid crystals (N) are known to transform to chiral nematic liquid crystals (N*) on doping a small amount of chiral molecules, whereas the induction mechanism is still not fully understood. We investigate the effect of dipolar interactions between dopants and liquid crystals using ruthenium complex dopants with Δ, Λ chirality. We prepared four different dopants by changing the number and position of bromine atom introduced to the ligand. Depending on the position of the bromine atoms, N* with opposite helices were selectively formed on doping with MBBA and 5CB.