smectic

The trifluoromethoxy end - group favors for the formation of smectic phase.

三氟甲氧基有利于近晶相.

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Two - ring liquid crystal compounds exhibited no mesogenic phase or only a monotropic smectic A phase.

其中二环系液晶化合物不显示液晶相或仅显示单边近晶A相.

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