Crystal structures of tolfenamic acid polymorphic forms I and II with precise hydrogen-atom positions for nuclear magnetic resonance studies

Blade, H.; Blundell, C.D.; Vitorica-Yrezabal, I. J.

doi:10.1107/S2056989020010841

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 2
Crystal structures of TFA form I and form II showing their inversion-dimer pairs and differing packing arrangements (both viewed along the a axis). Hydrogen bonds are indicated with dotted lines. For clarity, only polar hydrogen atoms have been included.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 76| Part 9| September 2020| Pages 1421-1426

https://doi.org/10.1107/S2056989020010841

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