VCl2
vanadium(II) chloride · vanadous chloride
Vanadium(II) chloride is a stable, semiconducting inorganic compound primarily used as a precursor in chemical synthesis and materials research.

About vanadium(II) chloride
Vanadium(II) chloride is a stable inorganic halide that exhibits semiconducting electronic behavior. As a member of the transition metal halide family, it is recognized for its robust thermodynamic stability, sitting securely on the convex hull of its phase space. Its structural versatility is highlighted by a significant number of reported configurations across various databases, making it a well-documented subject for fundamental research. This compound serves as a critical precursor in synthetic chemistry and materials development, where its specific electronic properties are leveraged to explore new chemical pathways. Its stability ensures it remains a reliable material for systematic studies into vanadium-based halides and their potential for specialized technological applications.
Key Properties
Cross-validated computational properties for vanadium(II) chloride, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where vanadium(II) chloride is used.
Frequently Asked Questions
Common questions about vanadium(II) chloride, answered from cross-validated data.
What is VCl2?
Vanadium(II) chloride is a stable, semiconducting inorganic compound primarily used as a precursor in chemical synthesis and materials research.
What is VCl2 used for?
What is the band gap of VCl2?
Is VCl2 a metal, semiconductor, or insulator?
Is VCl2 thermodynamically stable?
How many polymorphs of VCl2 are known?
What elements does VCl2 contain?
Where does the data for VCl2 come from?
How It Compares
As a standalone representative of its class in this context, vanadium(II) chloride serves as a fundamental benchmark for understanding the behavior of transition metal halides. Its position on the convex hull establishes it as a highly reliable reference point for evaluating the stability and electronic characteristics of related binary halide systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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