Reversible Disassembly and Intercalation of 2-Ureido-4[1H]-Pyrimidinone Quadruple Hydrogen-bonded Supramolecular Assembly by Fluoride and Lead Ions

摘要

2-Ureido-4[1H]-pyrimidinone quadruple hydrogen-bonded assembly 1·1 containing N,N-dimethylaminophenyl moiety exhibits a sensitive response to fluoride anion and lead cation. Spectroscopic studies reveal that the presence of small amount of fluoride anions and lead cations can easily disassemble and intercalate 2-ureido-4[1H]-pyrimidinone hydrogen-bonded supramolecular architectures.