Palladium(II) nitrate

Palladium(II) nitrate
Names
	IUPAC name Palladium(II) nitrate
	Other names Palladium nitrate; Palladous nitrate
Identifiers
CAS Number	10102-05-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	23306 ;
ECHA InfoCard	100.030.228
PubChem CID	24932;
UNII	5G27LBZ05U ;
CompTox Dashboard (EPA)	DTXSID60881413 ;
	InChI InChI=1S/2NO3.Pd/c22-1(3)4;/q2-1;+2 Key: GPNDARIEYHPYAY-UHFFFAOYSA-N ; InChI=1/2NO3.Pd/c22-1(3)4;/q2-1;+2 Key: GPNDARIEYHPYAY-UHFFFAOYAP;
	SMILES [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O;
Properties
Chemical formula	Pd(NO3)2
Molar mass	230.43 g/mol
Appearance	yellow solid
Density	3.546 g/cm3
Melting point	Decomposes >100 °C
Solubility in water	Soluble
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Irritant, possibility of allergic reaction
Flash point	Non-flammable
Related compounds
Other anions	Palladium(II) chloride
Other cations	Nickel(II) nitrate
Related compounds	Silver nitrate
	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) nitrate is the inorganic compound with the formula Pd(NO₃)₂.(H₂O)_x where x = 0 or 2. The anhydrous and dihydrate are deliquescent solids. According to X-ray crystallography, both compounds feature square planar Pd(II) with unidentate nitrate ligands. The anhydrous compound, which is a coordination polymer, is yellow.^[1]^[2]

As a solution in nitric acid, Pd(NO₃)₂ catalyzes the conversion of alkenes to dinitrate esters. Its pyrolysis affords palladium oxide.^[3]

Preparation

Hydrated palladium nitrate may be prepared by dissolving palladium oxide hydrate in dilute nitric acid followed by crystallization. The nitrate crystallizes as yellow-brown deliquescent prisms. The anhydrous material is obtained by treating palladium metal with fuming nitric acid.^[1]

References

^ ^a ^b ^c Bruns, Jörn; Klüner, Thorsten; Wickleder, Mathias S. (2015). "Oxoanionic Noble Metal Compounds from Fuming Nitric Acid: The Palladium Examples Pd(NO₃)₂ and Pd(CH₃SO₃)₂". Chemistry - A European Journal. 21 (3): 1294–1301. doi:10.1002/chem.201405355. PMID 25431333.
^ Laligant, Y.; Ferey, G.; Le Bail, A. (1991). "Crystal Structure of Pd(NO₃)₂(H₂O)₂". Materials Research Bulletin. 26 (4): 269–275. doi:10.1016/0025-5408(91)90021-D.
^ Timothy T. Wenzel "Palladium(II) Nitrate" Encyclopedia of Reagents for Organic Synthesis 2001, John Wiley & Sons. doi:10.1002/047084289X.rp013

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[anhydr-1] Bruns, Jörn; Klüner, Thorsten; Wickleder, Mathias S. (2015). "Oxoanionic Noble Metal Compounds from Fuming Nitric Acid: The Palladium Examples Pd(NO₃)₂ and Pd(CH₃SO₃)₂". Chemistry - A European Journal. 21 (3): 1294–1301. doi:10.1002/chem.201405355. PMID 25431333.

[2] Laligant, Y.; Ferey, G.; Le Bail, A. (1991). "Crystal Structure of Pd(NO₃)₂(H₂O)₂". Materials Research Bulletin. 26 (4): 269–275. doi:10.1016/0025-5408(91)90021-D.

[3] Timothy T. Wenzel "Palladium(II) Nitrate" Encyclopedia of Reagents for Organic Synthesis 2001, John Wiley & Sons. doi:10.1002/047084289X.rp013

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