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(A) Hydrogen-bonded chain of (NA‒SUB) and (NA2‒SUB). Adapted from the Ref. 78 with the permission. Copyright © 2013 John Wiley and Sons. (B) Structure of supramolecular chains of (NA‒SUB) and (NA2‒SUB). Adapted from the Ref. 77 with the permission. Copyright © 2009 Royal Society of Chemistry.
