Preparation and topological properties of two structures with p-sulfobenzoic ligands and Zn2+ and Mn2+ ions

Abstract

There has been recent interest in coordinated polymers due to their structural and topological properties; therefore, the search for efficient synthesis processes to construct these materials by exploiting different organic ligands has intensified. In this context, two coordinated polymers (Zn–psb and Mn–psb) consisting of p-sulfobenzoic acid and either Zn²⁺ or Mn²⁺ ions, respectively, were synthesized by crystallization in gel using ethambutol hydrochloride as a new crystallization agent. Both compounds crystallized in the triclinic system and space group P and have similar unit cell volumes with a difference of 2%. The crystal data for Zn–psb: a = 8.080(4) Å, b = 11.385(6) Å, c = 12.282(6) Å, α = 97.402(4)°, β = 106.530(4)°, and γ = 110.445(5)°; and for Mn–psb: a = 8.055(5) Å, b = 10.152(7) Å, c = 12.541(8) Å, α = 99.084(6)°, β = 95.358(5)°, and γ = 106.090(6)°. Despite the structural similarity, two different networks (tfz-d and pcu for Zn–psb and Mn–psb, respectively) were formed, and their topological properties were explored by reticular chemistry.