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One-Dimensional and Two-Dimensional Zn(II) Coordination Polymers with Ditopic Imidazo[1,5-a]pyridine: A Structural
Mattia Sozzi1, Michele R Chierotti1, Roberto Gobetto1
1Department of Chemistry and NIS Centre, University of Turin, Via Pietro Giuria 7, 10125 Torino, Italy.
Molecules (Basel, Switzerland)
|February 10, 2024
Summary
Researchers explored new zinc(II) coordination polymers using imidazo[1,5-a]pyridine ligands. These structures exhibit unique solid-state π-stacking, expanding the ligand
Area of Science:
- Coordination Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Zinc(II) coordination polymers are recognized for their stability and diverse properties.
- Imidazo[1,5-a]pyridine derivatives are of increasing interest due to their luminescence and pharmaceutical potential.
Purpose of the Study:
- To synthesize and characterize novel zinc(II) coordination polymers incorporating imidazo[1,5-a]pyridine ligands.
- To investigate the role of imidazo[1,5-a]pyridine derivatives in influencing structural dimensionality and function.
- To explore the potential of these ligands in establishing supramolecular interactions.
Main Methods:
- Synthesis and single-crystal X-ray diffraction of three new coordination polymers.
- Utilized Zn(II) as the metallic node and dicarboxylic acids of varying lengths as linkers.
- Employed Density Functional Theory (DFT) calculations to analyze π-π interactions in model structures.
Main Results:
- Successfully synthesized and crystallized three novel coordination polymers with Zn(II).
- Demonstrated the structural versatility of imidazo[1,5-a]pyridines in coordination polymer frameworks.
- Observed significant π···π interactions within the solid-state structures, indicating strong π-stacking capabilities.
Conclusions:
- Imidazo[1,5-a]pyridine derivatives show significant potential as ligands in coordination chemistry, particularly in promoting dimensionality.
- The heterocyclic scaffold effectively facilitates π···π stacking interactions, leading to ordered supramolecular assemblies.
- This study expands the application scope of imidazo[1,5-a]pyridines into coordination polymer design and solid-state supramolecular chemistry.
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