CAS 13470-13-8 Tungsten(IV) chloride - Catalysts / Alfa Chemistry

Synonyms

Tungsten tetrachloride

IUPAC Name

Tetrachlorotungsten

Molecular Weight

325.6

Molecular Formula

WCl4;Cl4W;

Canonical SMILES

Cl[W](Cl)(Cl)Cl

InChI

InChI=1S/4ClH.W/h4*1H;/q;+4/p-4

InChI Key

YOUIDGQAIILFBW-UHFFFAOYSA-J

Boiling Point

338.99 °C

Purity

99%+

Density

4.624 g/cm³

Appearance

Gray powder

Complexity

19.1

Covalently-Bonded Unit Count

Exact Mass

325.823394

Heavy Atom Count

Monoisotopic Mass

323.826344

Topological Polar Surface Area

0 Å²

Application

Tungsten(IV) chloride, WCl4, is a black diamagnetic solid with a polymeric structure, characterized by linear chains of tungsten atoms in octahedral geometry. It serves as a crucial precursor reactant in the preparation of highly conductive tungsten diselenide nanosheets. In this solid, each tungsten center is linked by six chloride ligands, four of which act as bridging ligands, resulting in alternating bonding and nonbonding tungsten-tungsten separations. Typically produced by reducing WCl6, WCl4 can be synthesized using various reductants such as red phosphorus, tungsten hexacarbonyl, gallium, tin, and optimally, antimony. This compound is sensitive to moisture and can decompose when heated, highlighting the need for careful handling during its use in advanced material synthesis.

March 30, 2025

Reliable Precursor for Tungsten Diselenide Nanosheets

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