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Updated: Jun 1, 2026
11:22
Investigations on the Ga(III) Complex of EOB-DTPA and Its 68Ga Radiolabeled Analogue
Published on: August 17, 2016
Poly[μ(6)-adipato-diaquadi-μ(2)-oxalato-digadolinium(III)]
1School of Materials & Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
Summary
This study details a new coordination polymer involving Gadolinium(3+) ions, adipate, and oxalate ligands. The resulting 3D framework exhibits layers bridged by adipate and oxalate, forming a complex crystal structure.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Crystallography
Background:
- Lanthanide-based coordination polymers are of interest due to their diverse structures and potential applications.
- Understanding the self-assembly of metal-organic frameworks is crucial for designing new materials.
Purpose of the Study:
- To synthesize and characterize a novel coordination polymer of Gadolinium(3+).
- To elucidate the crystal structure and coordination environment of the metal ions and ligands.
Main Methods:
- Single-crystal X-ray diffraction was used to determine the crystal structure.
- Analysis of coordination numbers and geometries around the Gd(3+) ions.
Main Results:
- A centrosymmetric, three-dimensional coordination polymer [Gd(2)(C(6)H(8)O(4))(C(2)O(4))(2)(H(2)O)(2)](n) was synthesized.
- Gd(3+) ions exhibit a distorted tricapped trigonal-prismatic geometry, coordinated by nine oxygen atoms from adipate, oxalate, and water ligands.
- Adipate ligands bridge Gd(3+) centers to form layers parallel to the (010) plane, which are further interconnected by oxalate ligands into a 3D framework.
- Adipate and oxalate ions are located on inversion centers, with partial disorder observed in the adipate anion.
Conclusions:
- The study successfully synthesized and characterized a novel 3D Gadolinium-based coordination polymer.
- The intricate network structure arises from the bridging capabilities of both adipate and oxalate ligands.
- The observed coordination geometry and framework assembly provide insights into the structural diversity of lanthanide-organic materials.
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