prov:value
| - A liquid crystal material comprising at least two components, of which at least one is a 2-(4,3-disubstituted phenyl)-5-alkyl-1,3,2-dioxaborinane derivative of the general formula ##STR244## wherein A is --OR--, or --CN, ##STR245## X and Y being simultaneously or independently H, F, or Cl, at least one of X and Y being other than H, R, R' standing for an alkyl radical of a normal structure, compri
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