New chiral dopants for nematic liquid crystals, containing a (S)-3,3′-(4H,4′H)-spirobi(2H-naphtho[1,2-b]pyran) skeleton, were synthesized and their helical twisting powers (HTP) were evaluated. A chiral dopant with two terphenyl structures showed the highest molar HTP value of 50.3 μm−1 mol−1 kg.
合成了含有(S)-3,3′-(4H,4′H)-spirobi(2H-naphtho[1,2-b]pyran)骨架的新型向列液晶手性掺杂剂及其螺旋扭转能力(HTP)进行了评估。具有两个三
联苯结构的手性掺杂剂显示出最高摩尔 HTP 值,为 50.3 μm−1 mol−1 kg。