“…9,10 Such complexes studied previously include DMAN in combination with benzene-1,2,4,5tetracarboxylic acid, 4,5-di-chlorophthalic acid, 11 maleic acid, 12 benzene-1,2,3-tricarboxylic acid, 13 chloranilic acid, 14 1,2-dichloromaleic acid 15 and a range of halo benzoic acids. 16,17 In these complexes, DMAN typically extracts a proton from the organic acid inducing the formation of O-H⋯O − charge-assisted hydrogen bonds (CAHBs) between acid molecules. 11,15,16,18 The extracted proton is held by the DMAN molecule in an asymmetric [19][20][21][22] intramolecular [N-H⋯N] + hydrogen bond (IHB).…”