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In recent years, some X-ray structural and computational evidence has emerged for noncovalent carbon bonding (C-bond). However, evidence of C-bonds in solution is limited. Herein, from the conformational analyses of… Click to show full abstract
In recent years, some X-ray structural and computational evidence has emerged for noncovalent carbon bonding (C-bond). However, evidence of C-bonds in solution is limited. Herein, from the conformational analyses of strategically designed N-methyl-N,N'-diacylhydrazines, we for the first time show that C-bonds can be modulated to control the conformational preferences of small molecules in solution. We show that unusual N(amide)C-X noncovalent carbon bonding interactions stabilize the trans-cis (t-c) amide bond rotamers of N-methyl-N,N'-diacylhydrazines over the expected trans-trans (t-t) rotamers.
Journal Title: Chemical communications
Year Published: 2020
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