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".

Identifiers

CAS Number	13444-96-7^Y
3D model (JSmol)	Interactive image
ChemSpider	75308^N
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^N Key: BHZSLLSDZFAPFH-UHFFFAOYSA-L^N 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^[1]
Density	5.76 g cm⁻³^[1]
Melting point	952 °C (1,746 °F; 1,225 K)^[1]
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). N verify (what is ^YN ?) Infobox references