A range of conjugated 1, 3-diynes, R1C CC CR2, has been prepared that incorporate the following heteroaromatic units as head groups of the substituents R1 and/or R2: pyrimidinyl, purinyl, 2, 4-diamino-1, 3, 5-triazinyl and acridinyl. Compounds containing the first three groups as terminal heterocyclic substituents in both R1 and R2 are bonded through methylene linkers {(CH2) n, n= 1, 4 or 9} to the 1, 3-diyne; also reported are amphiphilic ...
