Perxenate

Perxenates are chemical compounds in which the perxenate anion XeO ₆⁴⁻ occurs. The perxenates represent the salts of perxenonic acid H ₄ XeO ₆ .

Extraction and presentation

The perxenate ion can be obtained by disproportionation of the hydrogen xenate ion.

${\ displaystyle \ mathrm {2 \ HXeO_ {4 (aq)} ^ {\, -} + 2 \ OH _ {(aq)} ^ {\, -}} \ longrightarrow}$ ${\ displaystyle \ mathrm {XeO_ {6 (aq)} ^ {\, 4 -} + Xe + O_ {2} +2 \ H_ {2} O _ {(l)}}}$

properties

The perxenate anion has an octahedral structure. The Xe – O bond spacing is 1.875 Å and the O – Xe – O angle is between 87 ° -93 °. All perxenates are stable under normal conditions, with the silver (I) perxenate already decomposing at room temperature. In addition, the perxenate ion is a strong oxidizing agent . It is capable of the manganese (II) - cation Mn ²⁺ in the permanganate anion MnO ₄^- to oxidize.

Examples

Sodium perxenate Na ₄ XeO ₆
Potassium perxenate K ₄ XeO ₆
Barium perxenate Ba ₂ XeO ₆
Silver (I) -perxenate Ag ₄ XeO ₆

Individual evidence

↑ David W. Oxtoby, Wade A. Freeman, Toby F. Block: Chemistry 4th Edition . ISBN 0-03-033188-9 , chap. 4 , p. 87AP .
^ Walter C. Hamilton, James A. Ibers, Donald R. Mackenzie: Geometry of the Perxenate Ion . Science, August 1963, pp. 532-534 , doi : 10.1126 / science.141.3580.532 .
↑ Jeffrey L. Peterson, Howard H. Claassen, Evan H. Appelman: Vibrational spectra and structures of xenate (VI) and perxenate (VIII) ions in aqueous solution . Inorg. Chem., March 1970, pp. 619-621 , doi : 10.1021 / ic50085a037 .
^ Allen J. Bard, Roger Parsons, Joseph Jordan: Standard Potentials in Aqueous Solution . CRC Press, 1985, ISBN 0-8247-7291-1 , pp. 778 .
^ Linus Pauling: General Chemistry . Courier Corporation, 1988, ISBN 0-486-65622-5 , pp. 251 .

[1] David W. Oxtoby, Wade A. Freeman, Toby F. Block: Chemistry 4th Edition . ISBN 0-03-033188-9 , chap. 4 , p. 87AP .

[2] Walter C. Hamilton, James A. Ibers, Donald R. Mackenzie: Geometry of the Perxenate Ion . Science, August 1963, pp. 532-534 , doi : 10.1126 / science.141.3580.532 .

[3] Jeffrey L. Peterson, Howard H. Claassen, Evan H. Appelman: Vibrational spectra and structures of xenate (VI) and perxenate (VIII) ions in aqueous solution . Inorg. Chem., March 1970, pp. 619-621 , doi : 10.1021 / ic50085a037 .

[4] Allen J. Bard, Roger Parsons, Joseph Jordan: Standard Potentials in Aqueous Solution . CRC Press, 1985, ISBN 0-8247-7291-1 , pp. 778 .

[5] Linus Pauling: General Chemistry . Courier Corporation, 1988, ISBN 0-486-65622-5 , pp. 251 .