Self-assembly via intermolecular hydrogen-bonding between o-/m-/p-NH2 and BF2 groups on dipyrromethenes |
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Authors: | Ji-Young Shin |
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Affiliation: | Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, Canada BC V6T 1Z1 |
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Abstract: | Boron difluoride dipyrromethenes bearing configurationally different amine groups on a meso-phenyl ring were prepared and crystallized. The ortho- and para-amino groups allow the phenyl group to inductively release greater electron density into the dipyrromethenes resulting in relatively strong intermolecular hydrogen-bonding with the terminal BF2 groups, whereas the meta-analog formed weaker hydrogen-bonds. The intensities of the 1H NMR peaks in concentrated solutions all increased with F-decoupling. |
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Keywords: | Boron-dipyrromethene Hydrogen-bond Self-assembly |
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