Oxacalix[4]arene-bridged pillar[5]arene dimers comprising a pair of enantiomers and a meso isomer were synthesized. Chiral [2]rotaxanes and [3]rotaxanes were constructed.
Oxacalix[4]arenes obtained from the highly efficient, one-pot SNAr reaction were post-macrocyclization functionalized through the reduction of nitro groups and hydrolysis of the ester groups to obtain several derivatives of desired solubility and anion binding property.
FRET pair pyrene and perylene fluorophores were incorporated into hydrazide-based molecular duplex strands. The dimerization constants were determined via monitoring the pyrene excimer emission band. When non-fluorescent hydrazide-based oligomers with...
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