| http://www.w3.org/ns/prov#value | - group of 1-6 carbon atoms, a phenyl group or a phenyl group substituted with 1-2 alkyl groups of alkoxyls having 1-6 carbon atoms, Y represents --O--, --S--, or--N-- and n is an integer of 1-3.The polymeric complexons of formulae (1) and (2), described herein, may conveniently be prepared by treating a polymeric compound of the formula P --XH where P is the polymeric skeleton and X represents --O-
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