Hydrogen bonding, multi-point

As stated, hydrogen bonds have been used to construct the majority of finite molecular assemblies. Thus, most synthons used to form finite assemblies in the solid state have been based on hydrogen bonds. Many such synthons have also been used to form networks.2 Examples include single-point hydrogen bonds based on phenols and imidazoles, as well as multi-point hydrogen bonds based on carboxylic acid dimers, pyridone dimers, urea dimers, cyanuric acid-melamine complexes, and pyridine-carboxylic acid complexes.2... 

Figure 2.5 Distributions of the energy difference, AE, between observed and global minimum energy crystal structures for (a) atomic point charge and atomic multipoles models and (b) hydrogen bonding and nonhydrogen bonding molecules (using the atomic multi-poles-based model potential). Adapted from [21] with permission. Copyright 2005 American Chemical Society...

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