English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In the title salt, C 20 H 22 N 22+ ·2C 12 H 4 N 4− , the cations and anions stack along the  b  axis into segregated columns. In the cation, which has a crystallographically imposed centre of symmetry, the dihedral angle between the benzene and pyridine rings is 89.14 (4)°. Centrosymmetrically related anions form dimers by π–π stacking inter­actions, with centroid–centroid separations of 3.874 (4) Å. The crystal packing is stabilized by inter­columnar C—H⋯N hydrogen bonds.

4,4′-Dimethyl-1,1′-(p-phenylenedimethylene)dipyridinium bis[7,7,8,8-tetracyanoquinodimethanide(1−)]