Potassium tetrachloropalladate(II) is an inorganic chemical compound with the chemical formula K2PdCl4.[2][3]
Synthesis
Passing chlorine through a palladium black suspension in a concentrated potassium chloride solution:
- Pd + Cl2 + 2KCl → K2[PdCl4]
Reaction between concentrated solutions of palladium(II) chloride and potassium chloride:[4]
- PdCl2 + 2KCl → K2[PdCl4]
Decomposition of potassium hexachloropalladate(IV):
- K2[PdCl6] → K2[PdCl4] + Cl2
Physical properties
The compound forms dark brown crystals of tetragonal crystal system, space group P 4/mmm, cell parameters: a = 0.706 nm, b = 0.706, c = 0.410 nm, α = 90°, Z = 1.[5]
Potassium tetrachloropalladate(II) is relatively soluble in cold water, easily soluble in hot water, and poorly soluble in ethanol and acetone.[6][7]
Chemical properties
The compound reacts with aqua regia:
- 3K2[PdCl4] + 6HCl + 2HNO3 → 3K2[PdCl6] + 2NO + 4H2O
Uses
The compound is used in the synthesis of semiconducting metal-containing polymers.
See also
References
- ^ "Potassium tetrachloropalladate(II)". Sigma Aldrich. Retrieved 12 March 2025.
- ^ "Potassium Tetrachloropalladate(II) | AMERICAN ELEMENTS®". American Elements. Retrieved 12 March 2025.
- ^ Bingham, Eula; Cohrssen, Barbara (31 July 2012). Patty's Toxicology, 6 Volume Set. John Wiley & Sons. p. 699. ISBN 978-0-470-41081-3. Retrieved 12 March 2025.
- ^ Basolo, Fred; Burmeister, John L. (2003). On Being Well-coordinated: A Half-century of Research on Transition Metal Complexes : Selected Papers of Fred Basolo. World Scientific. p. 272. ISBN 978-981-238-087-6. Retrieved 12 March 2025.
- ^ "K₂PdCl₄". Materials Project. Retrieved 12 March 2025.
- ^ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 334. ISBN 978-1-4398-1462-8. Retrieved 12 March 2025.
- ^ "Potassium tetrachloropalladate(II), min 32.0% Pd, Thermo Scientific Chemicals, Quantity: 2 g | Fisher Scientific". Fisher Scientific. Retrieved 12 March 2025.