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Related Experiment Video

Updated: Sep 12, 2025

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI

Published on: November 22, 2016

Poly[bis-(μ₄-oxalato)potassium(I)praseodymium(III)].

Kanthida Kummoon¹, Sakchai Laksee², Kittipong Chainok¹

¹Thammasat University Research Unit in Multifunctional Crystalline Materials and Applications (TU-McMa) Faculty of Science and Technology Thammasat University Pathum Thani 12121 Thailand.

|August 8, 2025

Summary

This study details the crystal structure of a novel potassium-praseodymium oxalate coordination polymer. The research reveals a unique framework formed by oxalate ligands bridging metal cations.

Keywords:

coordination polymer crystal structure oxalate potassium praseodymium

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Area of Science:

Inorganic Chemistry
Crystallography
Materials Science

Background:

Coordination polymers offer diverse structural motifs and properties.
Bimetallic coordination polymers, particularly those involving lanthanides, are of interest for their unique electronic and magnetic behaviors.

Purpose of the Study:

To elucidate the crystal structure of a novel potassium-praseodymium oxalate-bridged bimetallic coordination polymer.
To characterize the coordination environment and bonding modes within the framework.

Main Methods:

Single-crystal X-ray diffraction analysis was employed to determine the crystal structure.
The crystal structure was solved in the monoclinic space group P2₁/c.

Main Results:

The asymmetric unit contains one Pr³⁺ cation, one K⁺ cation, and oxalate ligands.
Oxalate ligands exhibit a μ₄-chelating/bridging coordination mode.
A framework structure connecting Pr³⁺ and K⁺ cations was formed.

Conclusions:

The study successfully characterized a new oxalate-bridged bimetallic coordination polymer with the formula [KPr(C₂O₄)₂]_n.
The observed coordination mode of the oxalate ligand is crucial for the formation of the extended framework.