NOVEL SILACYCLOHEXANE COMPOUNDS A LIQUID CRYSTAL COMPOSITION COMPRISING THE SAME AND A LIQUID CRYSTAL DEVICE COMPRI.....

摘要

The silacyclohexane compound of the following structural formula (I) is provided.;Where R is an organic moiety, Represents a trans-1-sila-1,4-cyclohexylene group or a trans-4-sila-1,4-cyclohexylene group having substituents H, F, Cl or CH ₃ , and L ₁ represents F, L ₂ And L ₃ independently represents H, F, Cl or CH ₃ , X represents an organic moiety of F or C ₁ , n is an integer of 0, 1 or 2, and a and b are each 0 or 1, provided that , a + b = 1.;Silacyclohexane compounds are useful for liquid crystal compositions and liquid crystal devices.