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Updated: Jun 1, 2026
04:51
Synthesis of Triazole and Tetrazole-Functionalized Zr-Based Metal-Organic Frameworks Through Post-Synthetic Ligand Exchange
Published on: June 23, 2023
(2,2'-Biquinoline-κN,N')dibromido-zinc(II)
Hamideh Saravani1, Ali Reza Rezvani, Niloufar Akbarzadeh Torbati
1Department of Chemistry, University of Sistan and Baluchestan, PO Box 98135-674, Zahedan, Iran.
Summary
The crystal structure of a novel zinc(II) compound, [ZnBr2(2,2'-biquinoline)], was determined. Its distorted tetrahedral geometry and intermolecular interactions, including C-H⋯Br bonds and π-π stacking, influence crystal packing.
Area of Science:
- Coordination Chemistry
- Crystal Engineering
- Materials Science
Background:
- 2,2 -biquinoline is a versatile ligand in coordination chemistry.
- Zinc(II) complexes exhibit diverse structural motifs and properties.
- Understanding crystal packing is crucial for designing functional materials.
Purpose of the Study:
- To synthesize and characterize a new zinc(II) complex with 2,2 -biquinoline.
- To elucidate the coordination environment and crystal structure of the compound.
- To investigate the intermolecular interactions governing the crystal packing.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Synthesis of the [ZnBr2(C18H12N2)] compound.
- Crystallographic data collection and structure refinement.
Main Results:
- The Zn(II) atom adopts a distorted tetrahedral geometry, coordinated by two nitrogen atoms of the 2,2 -biquinoline ligand and two terminal bromide ions.
- Crystal packing is stabilized by weak intermolecular C-H⋯Br hydrogen bonds.
- Extensive intermolecular π-π contacts between pyridine and benzene rings were observed, with centroid-centroid distances ranging from 3.513(4) to 3.775(4) Å.
Conclusions:
- The study provides a detailed structural analysis of a novel zinc(II)-biquinoline complex.
- The interplay of coordination geometry and intermolecular forces dictates the solid-state architecture.
- This structural insight can inform the design of related coordination compounds with tailored properties.
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