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Molybdenum difluoride dioxide, MoO2F2.

Hashem Shorafa1, Halil Ficicioglu, Farhad Tamadon

  • 1Anorganische und Analytische Chemie, Institut für Chemie, Freie Universität, Fabeckstrasse 34-36, D-14195 Berlin, Germany.

Inorganic Chemistry
|April 13, 2010
PubMed
Summary
This summary is machine-generated.

Researchers synthesized molybdenum oxyfluoride (MoO(2)F(2)) via pyrolysis. Its preliminary structure reveals triangular columns with fluorine and oxygen bridges, distinct from titanium tetrafluoride.

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Area of Science:

  • Inorganic Chemistry
  • Solid-State Chemistry
  • Materials Science

Background:

  • Molybdenum oxyfluorides are compounds with potential applications in catalysis and materials science.
  • Understanding the structural properties of these compounds is crucial for predicting and tuning their behavior.

Purpose of the Study:

  • To synthesize molybdenum oxyfluoride (MoO(2)F(2)) using a novel precursor.
  • To determine the preliminary crystal structure of the synthesized MoO(2)F(2).

Main Methods:

  • Pyrolysis of a sodium cis-molybdenum oxyfluoride hydrate precursor: (Na(+)H(2)O)(2) cis-MoO(2)F(4)(2-).
  • Analysis of powder diffraction data to model the crystal structure.

Main Results:

  • Successful synthesis of MoO(2)F(2) achieved through controlled pyrolysis.
  • A preliminary triangular columnar structure was determined for MoO(2)F(2).
  • The structure features fluorine bridges between molybdenum atoms and oxygen bridges between layers, with unit cell parameters a = 1605, b = 384, c = 1395 pm in the Pnma space group (Z = 12).

Conclusions:

  • The pyrolysis route provides a viable method for preparing MoO(2)F(2).
  • The determined structure is analogous to TiF(4) but with a different column orientation, offering insights into related inorganic structures.