A series of new symmetric monomer comprising 2,6-dihydroxynaphthalene as central unit with extended side arms made up by biphenyl system and the terminal alkoxy chains, OC_nH_2n+1 (n = 7–12) have been successfully prepared and their mesomorphic behaviors were investigated. The naphthalene derivative with shorter terminal alkoxy chains ranging from n = 7 to n = 10 were found to display enantiotropic nematic (N) phase. The homologues with undecyloxy and dodecyloxy derivatives are enantiotropic N phase with the emergence of monotropic smectic C phase. The rigidity and polarizability of naphthalene core causes wide N phase transition temperature range.

已经成功制备了一系列新的对称单体，其以2,6-二羟基萘为中心单元，并由联苯系统和侧链烷氧基链构成了延伸的侧臂，并成功制备了OC _n H _{2n + 1}（n = 7-12），并且它们的介晶行为进行了调查。发现具有在n = 7至n = 10范围内的较短末端烷氧基链的萘衍生物表现出对映向列（N）相。十一烷氧基和十二烷氧基衍生物的同系物为对映N相，并出现单向近晶C相。萘核的刚性和极化性导致N相转变温度范围宽。