Polarized light microscopy and differential scanning calorimetry reveal DNC 18DCl3T and DNC 18DI3T exhibit smectic A phase, whereas DNC 8DCl3T and DNC 8DI3T do not form liquid crystal phase.

• 差示扫描量热法以及偏光显微镜观察结果显示 ,DNC18DCl3T和DNC18DI3T具有液晶性 ,形成近晶A相液晶。 而DNC8DCl3T和DNC8DI3T不具有液晶性。