| http://www.w3.org/ns/prov#value | - 24 carbon atoms or a substituted or unsubstituted cycloalkylene moiety having 5 to 30 carbon atoms, each Y1 and Y2 independently is a covalent bond, OCO, N???N, CH???N, C???C, CO, O, S, SO2, O(CO)O, OCS, CH2???O, CH2???S, each L1 and L2 independently is a hydrogen, a alkylene having 1 to 20 carbon atoms or CN, Z is a hydrogen, halogen, CN, ???OR, COOR, NO2, a halogen substituted or unsubstituted a
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