catena-Poly[[[pentaaquadysprosium(III)]-μ-5-az-an-ium-ylisophthalato] dichloride monohydrate]

Area of Science:

• Coordination chemistry
• Materials science
• Crystallography

Background:

• Dysprosium(III) complexes are of interest for their magnetic and luminescent properties.
• Coordination polymers offer tunable structures and functionalities.
• Understanding the structural motifs in lanthanide complexes is crucial for designing new materials.

Purpose of the Study:

• To synthesize and characterize a novel dysprosium(III) coordination polymer.
• To elucidate the crystal structure and coordination environment of the Dy(III) ion.
• To investigate the supramolecular interactions stabilizing the structure.

Main Methods:

• Single-crystal X-ray diffraction was used to determine the crystal structure.
• Continuous shape measure (CSM) analysis was employed to describe the coordination geometry.
• Infrared spectroscopy and elemental analysis were used for characterization.

Main Results:

• The title compound, {[Dy(C8H6NO4)(H2O)5]Cl2·H2O}n, was successfully synthesized and characterized.
• The Dy(III) ion exhibits nine-coordination with a distorted 'muffin'-type geometry.
• Bridging carboxylate ligands form infinite [10] chains, further stabilized by hydrogen bonding and π-π stacking.

Conclusions:

• The study presents a novel dysprosium(III) coordination polymer with a unique chain structure.
• The 'muffin'-type geometry and supramolecular interactions play a key role in the overall structure.
• This work contributes to the understanding of lanthanide coordination chemistry and the design of functional materials.