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Supramolecular HSAB Interactions

A crystal engineering strategy to restore the N-H- -O tape in diaryl ureas is now discussed. First, there are clear differences between the diaryl ureas highlighted in this chapter (N-aromatic) [23, 25-28] and the dibenzyl ureas (N-CH2-aromatic) [14] reported over a decade ago. The same combination of functional groups, namely urea. [Pg.182]

EWG = electron-withdrawing group EDG = electron-donating group HBA = hydrogen bond acceptor [Pg.184]

O urea tape C-I...Onitro synthon twisted conformation [Pg.184]

See other pages where Supramolecular HSAB Interactions is mentioned: [Pg.182]    [Pg.182]    [Pg.184]    [Pg.186]    [Pg.90]    [Pg.51]    [Pg.40]    [Pg.1576]   


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HSAB

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