Crystal structures of three anhydrous salts of the Lewis base 1,8-di­aza­bicyclo­[5.4.0]undec-7-ene (DBU) with the ring-substituted benzoic acid analogues 4-amino­benzoic acid, 3,5-di­nitro­benzoic acid and 3,5-di­nitro­salicylic acid

Smith, G.; Lynch, D.E.

doi:10.1107/S205698901600267X

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 2
The atom-numbering scheme and the molecular conformation of the DBU cation (A) and the DNBA anion (B) in (II)

with displacement ellipsoids drawn at the 40% probability level. The bonds in the minor disordered section of the six-membered ring of the cation and the cation–anion hydrogen bonds are shown as dashed lines.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 72| Part 3| March 2016| Pages 382-386

doi:10.1107/S205698901600267X

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