Poly[μ(3)-aqua-aqua(μ(3)-3,5-dinitro-benzoato-κO(1):O(3):O(5))caesium]

Area of Science:

• Coordination Chemistry
• Crystal Engineering
• Materials Science

Background:

• Cesium salts of organic acids are of interest for their diverse structural motifs.
• 3,5-dinitro-benzoic acid is a versatile ligand with nitro and carboxylate functionalities.
• Understanding metal-ligand interactions is crucial for designing novel materials.

Purpose of the Study:

• To elucidate the crystal structure of the cesium salt of 3,5-dinitro-benzoic acid.
• To characterize the coordination environment around the cesium ion.
• To investigate the role of water molecules and hydrogen bonding in the supramolecular assembly.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the detailed crystal structure.
• Analysis of coordination geometry and hydrogen bonding networks was performed.
• The polymeric nature of the complex was identified.

Main Results:

• The title complex, [Cs(C(7)H(3)N(2)O(6))(H(2)O)(2)](n), was successfully synthesized and characterized.
• Irregular CsO8 coordination spheres were observed, involving water molecules and ligand donors.
• A 3D polymeric structure was formed through bridging carboxylate and nitro groups, stabilized by intra-unit hydrogen bonding.

Conclusions:

• The cesium salt of 3,5-dinitro-benzoic acid forms a robust 3D coordination polymer.
• The coordination behavior of cesium ions and the influence of hydrogen bonding dictate the overall structure.
• This work contributes to the understanding of structure-property relationships in metal-organic complexes.