Two new Cu(ii) and La(iii) 2D coordination polymers, synthesis and in situ structural analysis by X-ray diffraction

Area of Science:

• Materials Chemistry
• Crystallography
• Coordination Chemistry

Background:

• Coordination polymers offer tunable properties for diverse applications.
• Developing novel structures with specific topologies is crucial for materials science.

Purpose of the Study:

• To synthesize and characterize new coordination polymers using 4,4'-dimethoxy-3,3'-biphenyldicarboxylic acid (H2dmbpdc).
• To investigate the structural, topological, and thermal properties of the resulting copper and lanthanum compounds.

Main Methods:

• Solvothermal synthesis of coordination polymers.
• Single-crystal and powder X-ray diffraction for structural determination.
• Thermogravimetric analysis for thermal stability assessment.

Main Results:

• Two new coordination polymers, CPO-71-Cu and CPO-72-La, were successfully synthesized.
• Both compounds form 2D layered structures with sql topologies (4(4)·6(2)).
• Structural analysis revealed distinct coordination environments for copper and lanthanum.

Conclusions:

• The study presents two novel coordination polymers with defined structures and topologies.
• The findings contribute to the understanding of structure-property relationships in metal-organic frameworks.