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Palladium(II) fluoride

Palladium(II) fluoride, also known as palladium difluoride, is the chemical compound of palladium and fluorine with the formula PdF<sub>2</sub>.

Structure and paramagnetism

Like its lighter congener nickel(II) fluoride, PdF<sub>2</sub> adopts a rutile-type crystal structure, containing octahedrally coordinated palladium, which has the electronic configuration t e. This configuration causes PdF<sub>2</sub> to be paramagnetic due to two unpaired electrons, one in each e<sub>g</sub>-symmetry orbital of palladium.

Synthesis

PdF<sub>2</sub> is prepared by refluxing palladium(II,IV) fluoride, Pd<sup>II</sup>[Pd<sup>IV</sup>F<sub>6</sub>], with selenium tetrafluoride, SeF<sub>4</sub>.

Pd[PdF<sub>6</sub>] + SeF<sub>4</sub> → 2PdF<sub>2</sub> + SeF<sub>6</sub>

Applications

Palladium fluoride is an insoluble powder used in infrared optical sensors, and in situations where reactivity to oxygen makes palladium oxide unsuitable.

See also

References