Technetium(III) chloride
(Redirected from
Technetium trichloride
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| Other names
Technetium(III) chloride
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3D model (
JSmol ) |
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| Properties | |
| Cl3Tc | |
| Molar mass | 204 g·mol−1 |
| Appearance | black solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Technetium trichloride is an inorganic compound of technetium and chlorine with the formula TcCl3.
Preparation and properties
Two
bioctahedral structure, consisting of triangular Tc3Cl9 units with C3v symmetry, with each Tc atom coordinated to two Tc neighbors and five chloride ligands (Tc-Tc bond length 2.44 angstrom). The Tc-Tc distances are indicative of double bonded Tc atoms. Tc3Cl9 is isostructural to its rhenium homologue, trirhenium nonachloride.[1]
β-TcCl3 is obtained by the reaction between technetium metal and chlorine gas. Its structure consists of infinite layers of edge-sharing octahedra, similar to MoCl3 and ReCl3, with distances that also indicate metal-metal bonding. It is less stable than α-TcCl3 and slowly transforms into it.[1]
References
- ^ PMID 24393028.