8-(dimethylamino)-N,N-dimethyl-naphthalen-1-aminium hydrogenterephthalate (PSH(+)TPAH(-)) and 8-(dimethylamino)-N,N-dimethylnaphthalen-1-aminium hydrogen-terephthalate hydrate (PSH(+)TPAH(-center dot)H(2)O) were prepared by the direct reaction of N-1,N-1,N-8,N-8-tetra-methyl-naphthalene-1,8-di-amine, Proton Sponge (PS)(c) and terephthalic acid (TPAH(2)) in a 1:1 stoichiometric relation. The structure of both salts is constructed on the base of 1D chains defined by hydrogen bonding of the anionic carboxylate end and the carboxylic acid of TPAH(-) anion. Additionally for the structure of PSH(+)TPAH(-center dot)H(2)O the water molecules connect this 1D chains through hydrogen bonds, then defining a 1D-belt. In both cases the PSH+ provides balance of charge among the chains.