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 6
The molecular structure of complex KH₃L1, with labels for the atoms in the asymmetric unit of the organic anion. Unlabelled atoms are related to labelled atoms by symmetry operator (i) −x + $[{1\over 2}]$ , −y + $[{1\over 2}]$ , −z. Displacement ellipsoids are drawn at the 50% probability level. [Further symmetry codes are: (ii) −x + 1, −y, −z: (iii) x, y + 1, z; (iv) x, y, z + 1; (v) −x + $[{1\over 2}]$ , −y + $[{1\over 2}]$ , −z − 1; (vi) x − $[{1\over 2}]$ , y + $[{1\over 2}]$ , z; (vii) −x + $[{1\over 2}]$ , −y − $[{1\over 2}]$ , −z.]

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

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

https://doi.org/10.1107/S2056989021003479

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