Inventors:
Robert C. Maze - Tempe AZ
Everett P. Oppenheim - Tempe AZ
Reese M. Reynolds - Phoenix AZ
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
C07C14368
C09K 334
Abstract:
Novel compounds exhibiting liquid crystal properties have the formula: R-. phi. -. phi. -X-. phi. -R1, wherein R and R1 are, independently in each case, hydrogen or an alkyl, aryl, alkylaryl, arylalkyl, or alkoxy group containing from 1 to about 12 carbon atoms, a halogen, a cyano group, an alkyl cyano group of from 1 to 5 carbon atoms, a --CF. sub. 3 group, an --N. sub. 3 group, a nitro group or a --N(CH. sub. 3). sub. 2 group, and X is ##STR1## These compounds are especially useful for increasing the clearing point and reducing the operating voltage of liquid crystal compositions including other ester or Schiff base liquid crystal compounds, and the like.