Hydrophobic compounds for optically active devices

A compound of formula (I′)

• wherein
• X is O or S,
• X0 is O,
• Y is O or S,
• —[B]— is selected from formulae (B-1) and (B-8),
• R is at each occurrence independently H, F, 2,2,2-trifluoroethyl, or trifluoromethyl,
• R′ is at each occurrence independently H, F, methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, trifluoromethyl, pentafluoroethyl, heptafluoropropyl, methoxy, ethoxy, propoxy, trifluoromethoxy, or pentafluoroethoxy,
• R1 is a polymerizable group of formula (5),
• wherein
• X11 is C(═O)O,
• R8 is H or methyl,
• R9 and R10 are H,
• c is 1,
• —R2— is —(C(R)2)o—, or —(C(R)2)p—X8—(C(R)2)q—(X9)s—(C(R)2)r—(X10)t—(C(R)2)u—, wherein at least one R is F, 2,2,2-trifluoroethyl, or trifluoromethyl;
• or a cycloalkylene group having 5 or 6 C atoms which is substituted with at least one R which is F, 2,2,2-trifluoroethyl, or trifluoromethyl,
• is 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12,
• X8, X9, X10 are at each occurrence, O
• s is 1,
• t is 0 or 1,
• p and u are independently 1, 2, or 3,
• q and r are 1,
• R3, R4, R5, R6 are at each occurrence, H, and
• R7 is R′.