Structural diversity in hybrid vanadium(IV) oxyfluorides based on a common building block

Area of Science:

• Materials Science
• Inorganic Chemistry
• Solid-State Chemistry

Background:

• Limited reports exist on vanadium(iv) oxyfluorides (VOFs) with extended crystal structures.
• The exploration of novel VOF materials is crucial for understanding structure-property relationships.

Purpose of the Study:

• To synthesize and characterize a series of new vanadium(iv) oxyfluoride (VOF) materials.
• To expand the known library of VOFs with extended crystal structures.
• To investigate the structural diversity and synthetic relationships of these new VOFs.

Main Methods:

• Ionothermal synthesis
• Solvothermal synthesis
• Crystallographic analysis

Main Results:

• Successfully synthesized 14 new vanadium(iv) oxyfluoride materials, denoted as VOF-n (n = 1-14).
• These materials were derived from the condensation of dimeric structural motifs.
• The new VOFs exhibit diverse crystal structures, including layer, ladder-like, and chain architectures.
• Specific examples include layer structures (VOF-1 to VOF-4), ladder structures (VOF-5 to VOF-13), and a chain structure (VOF-14).

Conclusions:

• The study significantly enriches the family of known vanadium(iv) oxyfluorides.
• The diverse structural motifs observed highlight the versatility of VOF chemistry.
• Understanding the synthetic and structural relationships provides a foundation for future VOF material design.