Fluorinated biphenyldiole derivatives
AssigneeMerck Patent Gesellschaft mit beschraenkter Haftung
InventorsDavid Coates, Ian C. Sage, Simon Greenfield
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Abstract
A chiral, tilted, smectic liquid crystal phase comprising a mixture of at least two compounds, wherein at least one compound is an achiral fluorinated biphenyldiole compound of formula I ##STR1## wherein R.sup.1 and R.sup.2 are each independently alkoxy or alkanoyloxy with 1 to 15 C atoms, ##STR2## denotes a 4,4-phenylene group optionally substituted by up to four F atoms, and is 1.
Claims5
A chiral, tilted, smectric liquid crystal phase comprising a mixture of at least two compounds, wherein at least one compound is an achiral fluorinated biphenyldiole of formula Ia ##STR17## wherein alkyl each independently represents straight-chained alkyl with 5 to 12 carbon atoms, and ##STR18## denotes a 1,4-phenylene group optionally substituted by 1-4 F atoms.
Dependencies are inferred from the claim text.