Rhenium trioxide chloride

Names
Other names

Rhenium oxychloride

Identifiers

CAS Number

* 42246-25-3

3D model (JSmol)

* Interactive image

InChI

* Key: YDGWOHYNESLUAQ-UHFFFAOYSA-M

SMILES

* O=[Re](=O)(=O)Cl

Properties

Chemical formula

| ClO3Re
Molar mass | 269.65 g·mol−1
Appearance  | colorless liquid
Density | 4.665 g/cm3 (-100 °C)
Melting point |  4.5 °C (40.1 °F; 277.6 K)
Boiling point |  113 °C (235 °F; 386 K)

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

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Rhenium trioxide chloride is an inorganic compound with the formula ReO
3Cl. It is a colorless, distillable, diamagnetic liquid. It is a rhenium oxychloride.[1] The material is used as a reagent in the preparation of rhenium compounds.

## Synthesis and reactions

Rhenium trioxide chloride can be prepared by chlorination of rhenium trioxide:[2]

2 ReO
3 \+ Cl
2 → 2 ReO
3Cl

With Lewis bases (L), rhenium trioxide chloride reacts to form adducts with the formula ReO
3ClL
2.[3]

The compound hydrolyzes readily to give perrhenic acid.

## Structure

The compound adopts a tetrahedral structure with Re-O and Re-Cl bond distances of 1.71 and 2.22 Å.[4] In contrast rhenium trioxide fluoride (ReO
3F) is polymeric with octahedral Re centers.

## References

1. ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 1052. ISBN 978-0-08-037941-8.
2. ↑ O. Glemser; R. Sauer (1963). "Rhenium (VII) Oxychloride". in G. Brauer. Handbook of Preparative Inorganic Chemistry, 2nd Ed.. 2pages=1480. NY, NY: Academic Press.
3. ↑ Noh, Wontae; Girolami, Gregory S. (2007). "Rhenium Oxohalides: Synthesis and Crystal Structures of ReO3Cl(THF)2, ReOCl4(THF), Re2O3Cl6(THF)2, and Re2O3Cl6(H2O)2". Dalton Transactions (6): 674–679. doi:10.1039/b616495a. PMID 17268601.
4. ↑ Spandl, Johann; Supeł, Joanna; Drews, Thomas; Seppelt, Konrad (2006). "MnO3Cl, Isolation and Crystal Structure". Zeitschrift für Anorganische und Allgemeine Chemie 632 (14): 2222–2225. doi:10.1002/zaac.200600186.

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