Palladium(II) fluoride
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| Identifiers | |
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3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.033.249 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| F2Pd | |
| Molar mass | 144.42 g·mol−1 |
| Appearance | pale violet crystalline solid; hygroscopic |
| Density | 5.76 g cm−3 |
| Melting point | 952 °C (1,746 °F; 1,225 K) |
| reacts with water | |
| Structure | |
| tetragonal | |
| octahedral | |
| Related compounds | |
Other anions |
Palladium(II) chloride Palladium(II) bromide Palladium(II) iodide |
Other cations |
Nickel(II) fluoride Platinum(II) fluoride Platinum(IV) fluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Palladium(II) fluoride, also known as palladium difluoride, is the chemical compound of palladium and fluorine with the formula PdF2.
Structure and paramagnetism
Like its lighter congener nickel(II) fluoride, PdF2 adopts a rutile-type crystal structure, containing octahedrally coordinated palladium, which has the electronic configuration t6
2g e2
g. This configuration causes PdF2 to be paramagnetic due to two unpaired electrons, one in each eg-symmetry orbital of palladium.
Synthesis
PdF2 is prepared by refluxing palladium(II,IV) fluoride, PdII[PdIVF6], with selenium tetrafluoride, SeF4.
- Pd[PdF6] + SeF4 → 2PdF2 + SeF6
Applications
Palladium fluoride is an insoluble powder used in infrared optical sensors, and in situations where reactivity to oxygen makes palladium oxide unsuitable.