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Updated: Jun 1, 2026
08:46
Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
Poly[[tetra-kis-(μ(2)-pyrazine N,N'-dioxide-κO:O')erbium(III)] tris-(perchlorate)]
James D Buchner1, Benjamin G Quinn-Elmore, Keith B Beach
1Allegheny College, 520 North Main St., Meadville, PA 16335, USA.
Summary
This study details a novel three-dimensional coordination network featuring erbium ions and pyrazine N,N-dioxide ligands. The structure exhibits unique coordination geometries and hydrogen bonding interactions within its channels.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Materials Science
Background:
- Lanthanide coordination chemistry is crucial for developing new materials.
- Pyrazine N,N-dioxide ligands offer versatile coordination modes.
- Understanding crystal structures informs material properties.
Purpose of the Study:
- To synthesize and characterize a novel three-dimensional coordination network containing erbium.
- To elucidate the coordination environment of the Er(+3) cation.
- To investigate the role of pyrazine N,N-dioxide ligands and perchlorate anions in the network's structure.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- The coordination geometry around the erbium ion was analyzed.
- Intermolecular interactions, including hydrogen bonding, were identified.
Main Results:
- A novel 3D coordination network, {[Er(C(4)H(4)N(2)O(2))(4)](ClO(4))(3)}(n), was successfully synthesized and structurally characterized.
- The erbium(III) cation exhibits a distorted square-anti-prismatic coordination environment.
- Two distinct pyrazine N,N'-dioxide ligands and two unique perchlorate anions were identified, forming channels within the network.
Conclusions:
- The synthesized compound is isostructural with other lanthanide analogues, indicating predictable coordination behavior.
- The C-H⋯O hydrogen bonds between perchlorate anions and the coordination network play a significant role in stabilizing the structure.
- This work contributes to the understanding of lanthanide-based coordination polymers and their structural features.
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