Rhenium trioxide chloride
Chemical compound From Wikipedia, the free encyclopedia
Rhenium trioxide chloride is an inorganic compound with the formula ReO3Cl. 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.
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| Names | |
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| Other names
Rhenium oxychloride | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| 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).
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Synthesis and reactions
Rhenium trioxide chloride can be prepared by chlorination of rhenium trioxide:[2]
- 2 ReO3 + Cl2 → 2 ReO3Cl
With Lewis bases (L), rhenium trioxide chloride reacts to form adducts with the formula ReO3ClL2.[3][4]
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.[5] In contrast rhenium trioxide fluoride (ReO3F) is polymeric with octahedral Re centers.
References
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