Two New Supramolecular Assemblies Obtained by Reaction Between Saccharin and Long-chain Diamines

Abstract

The crystal structures of heptamethylenediammonium bis (saccharinate) (2), were determined by single-crystal X-ray diffraction methods. Compound 1 crystallizes in the triclinic space group P1 with 2 molecules per unit cell, and 2 in the monoclinic space group P2 1 /a with Z = 4. The saccharinate moiety is planar in both compounds presenting bonding characteristics comparable to those found in other saccharinate salts. The ionic crystals are further stabilized by an extensive H-bonding network, which links the anions and cations into an infinite three-dimensional supramolecular assembly. The FTIR spectra of the adducts are briefly discussed in comparison with those of the constituent molecules.