Graph-set encoding of hydrogen-bonding pattern

The robust intermolecular motifs found in organic systems can be used to direct the synthesis of supramolecular complexes in crystal engineering. In the interest 

Some examples of graph-set descriptors of hydrogen-bonded structural motifs. 

The same set of hydrogen bond donors and acceptors may be connected in alternate ways to generate distinguishable motifs, giving rise to different 

Patterns of hydrogen bonding found in three polymorphic forms of 5,5-diethylbarbituric acid. The graph-set descriptors are (a) 

The group of Reinhoudt has reported the construction of a 3 hydrogen-bonded assembly of three calix[4]arene bismelamine and six barbituric acid derivatives (Fig. 20.2.7). 

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