One dimensional infinite water wires incorporated in isostructural organic crystalline supermolecules with zwitterionic channels

Abstract

Three isostructures [C₁₆H₈O₄·2(CH₆N₃)·4(H₂O)] (1), [C₁₆H₁₀O₄·2(CH₆N₃)·4(H₂O)] (2) and [C₁₄H₈N₂O₄·2(CH₆N₃)·4(H₂O)] (3) were prepared by the complexation of guanidinium with 4,4′-(ethyne-1,2-diyl)dibenzoic acid, 4,4′-(ethene-1,2-diyl)dibenzoic acid and 4,4′-(diazene-1,2-diyl)dibenzoic acid, respectively. The strong charge-assisted ⁺N–H⋯O⁻hydrogen bonds cause the assembly of guanidinium and these different acids following almost the same procedure. The hydrogen-bonded water wire is incorporated in zwitterionic channels of organic salts.