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Figure 1
(a) Crystal packing of 4-CN·DDQ viewed in the direction [100]. (b) Stack of DDQ radical anions in 4-CN·DDQ. Short intra-dimer and long inter-dimer contacts are marked as A (2.92 Å at room temperature and ambient pressure) and B (3.49 Å at room temperature and ambient pressure), respectively. The symmetry operator for contact A is −x, −y+1, −z and for B it is −x+1, −y+1, −z.

IUCrJ
Volume 8| Part 4| July 2021| Pages 644-654
ISSN: 2052-2525
https://doi.org/10.1107/S2052252521005273