0 a weak connection that is formed between an atom of hydrogen and an atom of another substance such as oxygen or nitrogen --
1 a weak connection that is formed between an atom of hydrogen (= a gas) and an atom of another substance such as oxygen or nitrogen (= a gas) --
Correlation with hydrogen bond length.
The relation should be particularly useful in studies of enzyme catalytic sites or other protein-ligand interactions in which hydrogen bond strength may play a key role.
Formally, the hydrogen bond has to be treated as a combination of a dipole-dipole interaction and a charge transfer reaction.
To represent the key feature of a polar solvent like water, the capability of hydrogen bond formation has to be represented.
The second distance restraint restricts the angle of the hydrogen bond.
The second condition ensures that the hydrogen bond is more or less linear.
Unlike the alcohols, general anaesthetics cannot hydrogen bond to phospholipid headgroups.
Note the hydrogen bond between the exocyclic amine of the 3h cytosine base and the non-bridging oxygen of the phosphate at the exchange point.
