The potential to surprise
Article Abstract:
An study of hydrogen bonding in the dimer composed of benzene and ammonia is presented. Hydrogen bonding has a key role in the aggregation of molecules to form liquids and solids, and also in determining the primary structures of many biological molecules. The results showed that one proton on the ammonia, which is usually a weak proton donor in most other complexes, is directed towards the benzene ring. These could have implications for biological molecules, particularly in amino-aromatic complexes which have groups similar to the ammonia benzene dimer.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
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Hydrogen bonding in the benzene-ammonia dimer
Article Abstract:
The benzene-ammonia dimer in the gas phase was subjected to high-resolution optical and microwave spectra analysis to examine hydrogen-bonding interactions in the molecule. The results yielded the unexpected results of proton donation by ammonia in a weakly bound complex. As the benzene-ammonia dimer is the simplest model of amino-aromatic interactions, the results could have implications for biomolecules possessing amino-aromatic groups.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
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Westhof's rule
Article Abstract:
A new rule has been proposed concerning hydrogen bonds and the pairing of nucleotides. The rule states that a cis position of the glycosyl bond results in antiparallel chains and a trans position to parallel chains provided that two conditions have been met: the two paired bases must hydrogen-bond via the same site and must follow the same conformation of the base with respect to the sugar.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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