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Updated: May 22, 2026
04:51
Synthesis of Triazole and Tetrazole-Functionalized Zr-Based Metal-Organic Frameworks Through Post-Synthetic Ligand Exchange
Published on: June 23, 2023
Dibromidobis(pyrazine-2-carboxamide-κN(4))zinc.
Sadif A Shirvan1, Sara Haydari Dezfuli
1Department of Chemistry, Omidieh Branch, Islamic Azad University, Omidieh, Iran.
Summary
This study details the crystal structure of a zinc bromide complex with pyrazine-2-carboxamide ligands. The complex exhibits crystallographic mirror symmetry, with a distorted tetrahedral zinc center stabilized by hydrogen bonds and other weak interactions.
Area of Science:
- Coordination Chemistry
- Crystal Engineering
- Materials Science
Background:
- Metal-organic complexes offer diverse structural and functional properties.
- Understanding intermolecular interactions is crucial for crystal engineering.
- Zinc bromide complexes are of interest for their potential applications.
Purpose of the Study:
- To synthesize and characterize a novel zinc bromide complex.
- To elucidate the crystal structure and bonding of the complex.
- To investigate the role of intermolecular interactions in crystal packing.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Spectroscopic characterization (e.g., IR, NMR - if applicable).
- Crystallographic analysis of symmetry and coordination geometry.
Main Results:
- The title complex, [ZnBr(2)(pyrazine-2-carboxamide)(2)], was synthesized and its crystal structure determined.
- The complex displays crystallographic mirror symmetry with a four-coordinated, distorted tetrahedral zinc center.
- Hydrogen bonding (N-H⋯O) and other weak interactions (N-H⋯N, C-H⋯O) significantly contribute to crystal packing.
Conclusions:
- The synthesized zinc complex exhibits unique structural features and symmetry.
- Intermolecular interactions play a vital role in stabilizing the crystal lattice.
- The findings contribute to the understanding of metal-ligand coordination and crystal design principles.
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