14187-32-7, Name is Dibenzo-18-crown-6, molecular formula is C20H24O6, belongs to chiral-catalyst compound, is a common compound. In a patnet, once mentioned the new application about 14187-32-7, SDS of cas: 14187-32-7
X-Ray and NMR Studies on Host-Guest Inclusion Complex Formation between Crown Ethers and Pyridinium Compounds
Inclusion complex formation between benzene-substituted crown ethers and electron-deficient pyridinium ions was studied by crystallographic and NMR methods.The major attractive host-guest interactions in these complexes are face-to-face aromatic-aromatic and cation-? interactions.In addition, the crystal structures show that hydrogen bonding influences the complexation of cations.Individual studies of the binding strength as a function of host, guest, and solvent were carried out.Four pyridinium guests were prepared for the investigation.Fast atom bombardment (FAB) mass spectrometry was used to determine the stoichiometry of the complexes.The stability constants were measured by 1H NMR and the structures of the complexes in acetonitrile are discussed.X-ray crystal structures were determined for complexes of dibenzo-18-crown-6 with pyridinium tetrafluoroborate (2B18C6-PyBF4) and dibenzo-18-crown-6 with 1-aminopyridinium tetrafluoroborate (2B18C6-1-NH2PyBF4). – Keywords: crown compounds; cations; host-guest chemistry; pi interactions
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.SDS of cas: 14187-32-7. In my other articles, you can also check out more blogs about 14187-32-7
Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare