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Updated: Jun 12, 2026
06:35
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Temperature-dependent supramolecular motif in coordination compounds
Hamid Reza Khavasi1, Bahareh Mir Mohammad Sadegh
1Department of Chemistry, Shahid Beheshti University, G. C. Evin, Tehran 1983963113, Iran. h-khavasi@sbu.ac.ir
Inorganic Chemistry
|May 26, 2010
Summary
The study explored mercury(II) chloride coordination polymers with a flexible ligand. Temperature dictates structure, yielding 2D frameworks at 60°C and 1D chains at room temperature.
Area of Science:
- Coordination Chemistry
- Materials Science
- Crystallography
Background:
- Coordination polymers exhibit diverse structures influenced by synthesis conditions.
- Mercury(II) chloride and flexible amide ligands are key components in forming novel coordination networks.
Purpose of the Study:
- To investigate the temperature-dependent structural transformations of HgCl(2) coordination polymers.
- To characterize the different motifs formed by N-(2-pyridylmethyl)-2-pyrazinecarboxamide ligand.
Main Methods:
- Single-crystal X-ray diffraction to determine the solid-state structures.
- Variable-temperature synthesis experiments to observe structural changes.
Main Results:
- A 2D coordination polymer framework with cubane-like units was obtained at 60°C.
- A 1D coordination polymer chain featuring L-bridged pentanuclear units and Hg-Cl-Hg bridges formed at room temperature.
Conclusions:
- Temperature is a critical factor in controlling the dimensionality and topology of HgCl(2) coordination polymers.
- The flexible ligand facilitates the formation of distinct structural motifs based on reaction temperature.
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