Perchloratoborate

Perchloratoborate
Names
IUPAC name
Perchloratoborate
Identifiers
3D model (JSmol)
  • InChI=1S/BCl4O16/c6-2(7,8)18-1(19-3(9,10)11,20-4(12,13)14)21-5(15,16)17/q-1
    Key: KAVUEELAKBBJMP-UHFFFAOYSA-N
  • O=[Cl](=O)(=O)O[B-](O[Cl](=O)(=O)=O)(O[Cl](=O)(=O)=O)O[Cl](=O)(=O)=O
Properties
[B(ClO4)4]-
Molar mass 408.61 g·mol−1
Related compounds
Other anions
 Tetranitratoborate
Other cations
 Tetraperchloratoaluminate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references


Perchloratoborate is an anion of the form [B(ClO4)4]−. It can form partly stable solid salts with heavy alkali metals. They are more stable than nitratoborate salts. K[B(ClO4)4] decomposes at 35 °C, Rb[B(ClO4)4] is stable to 50 °C, and Cs[B(ClO4)4] can exist up to 80 °C.

Perchloratoborates are analogous to perchloratoaluminates ([Al(ClO4)4]−).

Another related anion is the chloroperchloratoborate, Cl3B(ClO4).

Boron perchlorate itself is unstable above −5 °C.

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