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Updated: May 22, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
catena-Poly[(trans-diaqua-cadmium)-bis-{μ-5-[4-(1H-imidazol-1-yl)phen-yl]tetra-zol-1-ido}]
This study details a novel cadmium(II) coordination complex, [Cd(C(10)H(7)N(6))(2)(H(2)O)(2)], featuring an octahedral structure. The complex forms a 3D network through intermolecular hydrogen bonds, highlighting its potential in materials science.
Area of Science:
- Coordination Chemistry
- Materials Science
- Crystallography
Background:
- Metal-organic complexes offer tunable properties for advanced applications.
- Understanding the self-assembly of coordination polymers is crucial for designing new materials.
Purpose of the Study:
- To synthesize and characterize a new cadmium(II) coordination complex.
- To investigate the structural features and hydrogen bonding network of the complex.
Main Methods:
- Single-crystal X-ray diffraction was used to determine the molecular and crystal structure.
- Infrared spectroscopy was employed for characterization.
Main Results:
- The cadmium(II) ion is octahedrally coordinated by four nitrogen atoms from tetra-zol-1-ide ligands and two oxygen atoms from water molecules.
- The complex forms polymeric chains that interconnect via intermolecular O-H⋯N hydrogen bonds, creating a 3D network.
Conclusions:
- The synthesized compound, [Cd(C(10)H(7)N(6))(2)(H(2)O)(2)], exhibits a unique 3D supramolecular architecture.
- The hydrogen bonding interactions play a significant role in stabilizing the overall crystal structure.
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Stereoisomerism
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...