Poly[[μ-bis-(4-nitro-phen-yl) phosphato-κ(2) O,O']sodium]

Area of Science:

• Crystal Chemistry
• Coordination Chemistry
• Materials Science

Background:

• Understanding the structural properties of coordination compounds is crucial for developing new materials.
• Phosphate compounds exhibit diverse coordination behaviors with metal cations.
• Nitro-aromatic ligands offer unique coordination sites.

Purpose of the Study:

• To elucidate the crystal structure of the title compound, [Na(C12H8N2O8P)].
• To investigate the coordination environment of sodium cations and the bis-(p-nitrophenyl)phosphate anion.
• To describe the supramolecular assembly in the solid state.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of coordination modes and intermolecular interactions was performed.

Main Results:

• The compound consists of Na(+) cations and a distorted bis-(p-nitrophenyl)phosphate anion.
• The anion acts as a bridging ligand, connecting five Na(+) cations.
• A layered structure parallel to the (001) plane was observed, stabilized by C-H⋯O hydrogen bonds.

Conclusions:

• The [Na(C12H8N2O8P)] compound exhibits a complex three-dimensional network built from double layers.
• The distorted phosphate tetrahedron and extensive bridging interactions dictate the overall crystal packing.
• This structural motif provides insights into the coordination chemistry of sodium phosphates with nitro-aromatic ligands.