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The topic is science
This was used in 2004 to explain the bizarre behavior of a mixture of cyclodextrine and methylpyridine. In NMR, they cause a shift in the signal of a proton to a lower field. A system of them helps antibodies bind to their corresponding antigens, and they help keep molecules in DNA bound together. The IUPAC determined that one criterion for classifying bonds as these is that they are primarily electrostatic attractive forces, not dispersive forces. Their bond length is approximately 2 Angstroms, twice that of covalent bonds, and the strength of these bonds is about one tenth of covalent bonds. FTP, name this type of intermolecular bond that is responsible for the extremely high boiling point of water, an extremely strong type of dipole-dipole forces. |
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