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]
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| Names | |
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| IUPAC name
Palladium(II) nitrate
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| Other names
Palladium nitrate
Palladous nitrate | |
| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.030.228 |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| Pd(NO3)2 | |
| Molar mass | 230.43 g/mol |
| Appearance | yellow solid |
| Density | 3.546 g/cm3[1] |
| Melting point | Decomposes >100 °C |
| Soluble | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Irritant, possibility of allergic reaction |
| Flash point | Non-flammable |
| Related compounds | |
Other anions
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Palladium(II) chloride |
Other cations
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Nickel(II) nitrate |
Related compounds
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Silver nitrate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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As a solution in nitric acid, Pd(NO3)2 catalyzes the conversion of alkenes to dinitrate esters. Its pyrolysis affords palladium oxide.[3]
Preparation
editHydrated 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
edit- ^ 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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