4.7 Article

Conformational control of N-methyl-N,N′-diacylhydrazines by noncovalent carbon bonding in solution

Journal

CHEMICAL COMMUNICATIONS
Volume 56, Issue 36, Pages 4874-4877

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/D0CC00943A

Keywords

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Funding

  1. Early Career Research Grant from Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Government of India [ECR/2015/000337]
  2. Shiv Nadar University (SNU)

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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 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)MIDLINE HORIZONTAL ELLIPSISC-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.

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