175409-48-0Relevant academic research and scientific papers
Hydrogen Bonded non-covalent synthesis by reaction of porphyrin appended calix[4]arene with 5,5-diethylbarbituric acid in solution
Bisht, Tanuja,Garg, Bhaskar,Chauhan, Shive Murat Singh
, p. 103 - 111 (2014)
Calix[4]arene, diametrically substituted at the upper rim, with two porphyrin appended melamine units spontaneously form well-defined double rosette in the presence of 5,5-diethylbarbituric acid. This assembly consists of nine components which utilize 36 hydrogen bonds and are quite stable in apolar solvents of up to 10-4 M concentration. The formation of assembly between porphyrin appended calix[4]arene and diethylbarbiturate has been broadly studied by UV-visible, fluorescence and 1H NMR spectroscopic techniques. The stoichiometries of proposed aggregates have been analyzed by facile titration of calixarene and barbital. Furthermore, the MALDI-TOF mass measurement is found fully compatible with the observed stoichiometries. Graphical abstract: [Figure not available: see fulltext.]
Self-assembly of a multi-porphyrin supramolecular macrocycle by hydrogen bond molecular recognition
Drain, Charles Michael,Russell,Lehn, Jean-Marie
, p. 337 - 338 (1996)
Three triaminotriazine units bearing two appended porphyrins undergo self-assembly through multiple hydrogen-bonding with three complementary dialkylbarbituric acids yielding a supramolecular macrocycle containing six porphyrins.
