rectly to D, L1, comprises a substituted cyclic moiety having at least 5 members, M is a bridging group having at least one atom, q is an integer of from 1-3; and each cyclic structure of L and L1 contains 0-4 members of the group consisting of nitrogen, oxygen and sulfur; L1 is substituted by at least one substituent selected from the group consisting of ???SO2Rx, ???C(O)Rx and ???C(NRy)Rz; Ry is