Isostructural behaviour in ammonium and potassium salt forms of sulfonated azo dyes.

ABSTRACT: The structures of five ammonium salt forms of monosulfonated azo dyes, derivatives of 4-(2-phenyldiazen-1-yl)benzenesulfonate, with the general formula [NH₄][O₃S(C₆H₄)NN(C₆H₃)RR']·XH₂O [R = OH, NH₂ or N(C₂H₄OH)₂; R' = H or OH] are presented. All form simple layered structures with alternating hydrophobic (organic) and hydrophilic (cation, solvent and polar groups) layers. To assess for isostructural behaviour of the ammonium cation with M⁺ ions, the packing of these structures is compared with literature examples. To aid this comparison, the corresponding structures of four potassium salt forms of the monosulfonated azo dyes are also presented herein. Of the f

SUBMITTER: Kennedy AR 

PROVIDER: S-EPMC10913082 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature