| http://www.w3.org/ns/prov#value | - 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, SO2, O(CO)O, OCS, CH2???O, CH2???S, Alternatively, M is expressed as a mesogenic group of the general formula ???R10???Z, ???R10???Z1???R11???Z, ???R10???Y1???R11???Z2???R13???, or a steroidal moiety, preferably selected of the group of cholesteryl c
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