A new tetra­kis-substituted pyrazine carb­oxy­lic acid, 3,3′,3′′,3′′′-{[pyrazine-2,3,5,6-tetra­yltetra­kis(methyl­ene)]tetra­kis­(sulfanedi­yl)}tetra­propionic acid: crystal structures of two triclinic polymorphs and of two potassium–organic frameworks

Pacifico, J.; Stoeckli-Evans, H.

doi:10.1107/S2056989021003479

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 16
The energy frameworks calculated for (a) H₄L1_A and (b) H₄L1_B, both viewed along the b-axis direction, showing the electrostatic potential forces (E_ele), the dispersion forces (E_dis) and the total energy diagrams (E_tot).

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 77| Part 5| May 2021| Pages 480-490

https://doi.org/10.1107/S2056989021003479

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