Crystal and Molecular Structures of the 2:1 Cocrystal of 4-Nitrophenylacetic acid and N,N′-bis(pyridin-3-ylmethyl)oxalamide, and with the Thioxalamide Analogue

@article{Arman2012CrystalAM,
  title={Crystal and Molecular Structures of the 2:1 Cocrystal of 4-Nitrophenylacetic acid and N,N′-bis(pyridin-3-ylmethyl)oxalamide, and with the Thioxalamide Analogue},
  author={Hadi Arman and Trupta Kaulgud and Tyler Miller and Pavel V. Poplaukhin and Edward R. T. Tiekink},
  journal={Journal of Chemical Crystallography},
  year={2012},
  volume={42},
  pages={673-679}
}
The common feature of each of the title 2:1 cocrystals is the formation of the O–H···N(pyridyl) hydrogen bonds leading to three-molecule aggregates. The persistent formation of the O–H···N(pyridyl) hydrogen bonds where other functionalities are present, e.g. amide, indicates the robustness of this supramolecular synthon. In the structure of the 2:1 4-nitrophenylacetic acid N,N′-bis(pyridin-3-ylmethyl)oxalamide cocrystal, (1), the amide-H forms a hydrogen bond with the hydroxyl group so that… 
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