| Abstrakt: |
The enhanced influence of charge-assisted hydrogen bonds upon the resulting crystal structure in the presence of competing noncovalent interactions has been examined using single-crystal X-ray diffraction. The crystal structures of six organic salts are presented: 4-chlorobenzylammonium 2,4-dichlorobenzoate, 3-chlorobenzylammonium 2,4-dichlorobenzoate, 4-methylbenzylammonium pentafluorobenzoate, 4-chlorobenzylammonium pentafluorobenzoate, 3-methylbenzylammonium benzoate, and 4-chlorobenzylammonium benzoate monohydrate. All structures are dominated by charge-assisted $$ - {\text{NH}}_{\text{3}}^{\text{ + }} \cdot \cdot \cdot ^ - {\text{OOC}} -$$ hydrogen bonds that generate either one-dimensional ribbons or two-dimensional sheets. The structural influence of weaker intermolecular interactions is limited as there are very few short, halogen-halogen, π-π, or $${\text{C}} - {\text{H}} \cdot \cdot \cdot {\text{X}}$$ distances in this series of compounds. [ABSTRACT FROM AUTHOR] |
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