Perchloratoborate

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.[1] 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.[2]

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

Another related anion is the chloroperchloratoborate, Cl3B(ClO4).[3]

Boron perchlorate itself is unstable above −5 °C.[4]

  1. ^ Titova, K. V.; V. Ya. Rosolovskii (1975). "Reaction of nitrates of monovalent cations with BCl3". Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 24 (10): 2246–2248. doi:10.1007/BF00929774. ISSN 0568-5230.
  2. ^ Babaeva, V. P.; V. Ya. Rosolovskii (1974). "Thermal decomposition of perchloratoborates of the alkali metals". Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 23 (3): 477–481. doi:10.1007/BF00921126. ISSN 0568-5230.
  3. ^ Titova, K. V.; V. Ya. Rosolovskii (1974). "Tetraalkylammonium chloroperchloratoborates". Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 23 (10): 2092–2095. doi:10.1007/BF00921261. ISSN 0568-5230.
  4. ^ Rosolovskii, V. Ya.; V. P. Babaeva (1971). "Some properties of cesium perchloratoborate". Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 20 (4): 792–794. doi:10.1007/BF00853930. ISSN 0568-5230.