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Related Experiment Video

Updated: Jun 1, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)

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Published on: November 22, 2016

Sodium terbium(III) polyphosphate.

Abdelghani Oudahmane, Mohamed Daoud, Boumediene Tanouti

Acta Crystallographica. Section E, Structure Reports Online

|May 18, 2011

Summary

This summary is machine-generated.

Researchers synthesized single crystals of sodium terbium polyphosphate, NaTb(PO(3))(4), a type II long-chain polyphosphate. The study details its unique 3D framework structure built from polyphosphate chains and TbO(8) anti-prisms.

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Area of Science:

Inorganic Chemistry
Solid-State Chemistry
Crystallography

Background:

Long-chain polyphosphates are an important class of inorganic compounds with diverse structures and properties.
Compounds with the general formula A(I)B(III)(PO(3))(4) represent a specific subclass with potential applications in materials science.
Understanding the structural characteristics of these compounds is crucial for predicting and tailoring their functionalities.

Purpose of the Study:

To synthesize single crystals of the title compound, NaTb(PO(3))(4).
To elucidate the crystal structure of NaTb(PO(3))(4) and its relationship to known homologues.
To characterize the structural features, including polyphosphate chains, coordination polyhedra, and ion locations.

Main Methods:

Solid-state reaction for single crystal synthesis.
X-ray diffraction techniques for crystal structure determination.
Analysis of coordination environments and framework architecture.

Main Results:

Single crystals of NaTb(PO(3))(4) were successfully obtained via solid-state reaction.
The compound crystallizes as a type II long-chain polyphosphate, isotypic with NaNd(PO(3))(4) and NaEr(PO(3))(4).
A 3D framework is formed by infinite crenelated PO(4) tetra-hedra chains linked by TbO(8) square anti-prisms, with Na+ ions in [010] channels.

Conclusions:

NaTb(PO(3))(4) exhibits a complex 3D framework structure characteristic of type II long-chain polyphosphates.
The structural details provide insights into the bonding and coordination preferences of terbium and sodium ions within this polyphosphate system.
This work contributes to the understanding of structure-property relationships in rare-earth polyphosphates.