Palladium(II) fluoride

Palladium(II) fluoride
Identifiers
CAS Number	13444-96-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	75308 ;
ECHA InfoCard	100.033.249
EC Number	236-598-8;
PubChem CID	83470;
CompTox Dashboard (EPA)	DTXSID3065459 ;
	InChI InChI=1S/2FH.Pd/h21H;/q;;+2/p-2 Key: BHZSLLSDZFAPFH-UHFFFAOYSA-L ; InChI=1/2FH.Pd/h21H;/q;;+2/p-2 Key: BHZSLLSDZFAPFH-NUQVWONBAA;
	SMILES F[Pd]F;
Properties
Chemical formula	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)
Solubility in water	reacts with water
Structure
Crystal structure	tetragonal
Coordination geometry	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). verify (what is ?) Infobox references

Palladium(II) fluoride, also known as palladium difluoride, is the chemical compound of palladium and fluorine with the formula PdF₂.

Synthesis

PdF₂ is prepared by refluxing palladium(II,IV) fluoride, Pd^II[Pd^IVF₆], with selenium tetrafluoride, SeF₄.

Pd[PdF₆] + SeF₄ → 2PdF₂ + SeF₆

Like its lighter congener nickel(II) fluoride, PdF₂ adopts a rutile-type crystal structure,^[2]^[3] containing octahedrally coordinated palladium, which has the electronic configuration t⁶
_2g e²
_g. This configuration causes PdF₂ to be paramagnetic^[4] due to two unpaired electrons, one in each e_g-symmetry orbital of palladium.

Palladium fluoride is an insoluble powder used in infrared optical sensors,^[5] and in situations where reactivity to oxygen makes palladium oxide unsuitable.

^ ^a ^b ^c CRC Handbook, 89th edition
^ Bachmann, B.; Müller, B. G. (1993). "Einkristalluntersuchungen an Fluoroperowskiten MPdF₃ (M = Rb, K) und PdF₂". Z. Anorg. Allg. Chem. 619 (2): 387–391. doi:10.1002/zaac.19936190225.
^ Holleman, A. F.; Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Web: Academic Press. p. 1515. ISBN 9780123526519. Retrieved 30 May 2020.
^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1152–1153. ISBN 978-0-08-037941-8.
^ "American_Elements.com".