Polymeric tris(mu2)-acetone-kappa2O:O)sodium polyiodide at 120 K

Area of Science:

• Inorganic Chemistry
• Crystallography
• Materials Science

Background:

• Understanding the structural characteristics of coordination compounds is crucial for developing new materials.
• Sodium compounds with organic ligands and halogens exhibit diverse structural motifs.
• The specific interactions between sodium, organic molecules, and iodine can lead to unique chain structures.

Purpose of the Study:

• To elucidate the crystal structure of the compound [Na(C(3)H(6)O)(3)](n)(I(2))(n).
• To characterize the coordination environment of sodium ions and the arrangement of iodine atoms.
• To investigate the formation of infinite chains within the crystal lattice.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the crystal structure.
• Analysis of atomic positions and space group symmetry (P6(3)/mcm).
• Examination of coordination polyhedra and interatomic distances.

Main Results:

• The crystal structure features sodium atoms in octahedral coordination polyhedra, forming infinite face-sharing chains.
• Iodine atoms also form infinite linear chains with a specific interatomic separation.
• The compound exhibits rotational disorder in the methyl groups of the organic ligand.

Conclusions:

• The compound [Na(C(3)H(6)O)(3)](n)(I(2))(n) forms extended one-dimensional chains of both sodium coordination polyhedra and iodine atoms.
• The crystal structure is dictated by the specific arrangement of sodium, acetone, and iodine within the P6(3)/mcm space group.
• This structural insight contributes to the understanding of inorganic-organic hybrid materials.