Poly[μ(2)-aqua-(μ(3)-2,5-dichloro-benzene-sulfonato)sodium]

Area of Science:

• Crystal Engineering
• Coordination Chemistry
• Materials Science

Background:

• Sodium compounds and their coordination polymers are crucial in various chemical applications.
• Understanding the structural motifs of metal-organic frameworks provides insights into material properties.

Purpose of the Study:

• To elucidate the crystal structure of the novel sodium compound [Na(C(6)H(3)Cl(2)O(3)S)(H(2)O)](n).
• To investigate the coordination environment of the sodium ion and the resulting supramolecular architecture.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the precise atomic arrangement.
• Analysis of coordination geometry and intermolecular interactions (hydrogen bonding) was performed.

Main Results:

• The sodium ion (Na(I)) exhibits penta-coordination, adopting a distorted trigonal-bipyramidal geometry.
• The coordination sphere consists of three dichloro-benzene-sulfonate anions and two water molecules.
• A polymeric layer structure parallel to the bc plane was formed, facilitated by bridging sulfonate groups and water molecules, with observed O-H⋯O hydrogen bonds.

Conclusions:

• The study successfully characterized a new sodium coordination polymer with a layered structure.
• The findings highlight the role of sulfonate ligands and water molecules in constructing extended networks.