Two ionic hydrogen-bonded organic frameworks (iHOFs) assembled from 4-cyano-N-(4-cyanobenzyl)pyridinium, have been crystallized with Br and antimony(III) pentabromide, [SbBr], as counter-ions and characterized. These are 4-cyano-N-(4-cyanobenzyl)pyridinium bromide, CHN·Br, and bis[4-cyano-N-(4-cyanobenzyl)pyridinium] antimony(III) pentabromide, (CHN)[SbBr]. The CH...NC interactions induced by templating anions construct disparate frameworks. Hirshfeld surface analysis indicated that these crystals exhibit two types of hydrogen-bonding interactions, specifically CH...NC and CH...Br. Consecutive reverse-parallel CH...NC hydrogen-bonding interactions in these crystals induced the formation of a large number of CH...NC bonds which exhibit both cis and trans configurations.
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