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K4Vp2S9.

Andreas Gutzmann1, Christian Näther, Wolfgang Bensch

  • 1Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24089 Kiel, Germany.

Acta Crystallographica. Section C, Crystal Structure Communications
|February 10, 2004
PubMed
Summary

A new compound, tetrapotassium vanadium diphosphorus nonasulfide (K(4)VP(2)S(9)), was synthesized. Its crystal structure features unique square-pyramidal vanadium coordination within discrete anions.

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Area of Science:

  • Inorganic Chemistry
  • Solid-State Chemistry
  • Materials Science

Background:

  • Thiophosphates are a class of inorganic compounds with diverse structures and properties.
  • Vanadium-based materials are of interest due to their unique electronic and magnetic properties.

Purpose of the Study:

  • To synthesize and characterize a new quaternary thiophosphate containing vanadium.
  • To determine the crystal structure and coordination environment of the vanadium cation.

Main Methods:

  • Solid-state reaction synthesis using potassium sulfide (K(2)S(3)), vanadium phosphide (VP), phosphorus (P(4)S(3)), and sulfur (S).
  • Single-crystal X-ray diffraction for crystal structure determination.

Main Results:

  • The new compound K(4)VP(2)S(9) (tetrapotassium vanadium diphosphorus nonasulfide) was successfully prepared.
  • The crystal structure consists of discrete [VS(PS(4))(2)](4-) anions and K(+) cations.
  • The V(4+) cation exhibits a fivefold square-pyramidal coordination with sulfur atoms.

Conclusions:

  • The synthesis of K(4)VP(2)S(9) expands the family of quaternary thiophosphates.
  • The unique anion structure with square-pyramidal vanadium coordination provides insights into structure-property relationships in vanadium thiophosphates.

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