3 years ago

Latent Porosity in Alkali-Metal M2B12F12 Salts: Structures and Rapid Room-Temperature Hydration/Dehydration Cycles

Latent Porosity in Alkali-Metal M2B12F12 Salts: Structures and Rapid Room-Temperature Hydration/Dehydration Cycles
D. Luke Heyliger, Matic Lozinšek, Wei Zhou, Hui Wu, Steven H. Strauss, W. Matthew Jones, Dmitry V. Peryshkov, Terrence J. Udovic, Travis C. Folsom, Eric V. Bukovsky, Matthew R. Lacroix
The structures of K2(B12F12), Rb2(B12F12), and Cs2(B12F12) and their hydrates, and the shape and superweak basicity of B12F122−, may cause the latent porosity exhibited by these nonmicroporous salts. They undergo reversible hydration/dehydration cycles in the presence/absence of H2O(g) in only 1−2 h at room temperature. Surprisingly, the rate of hydration decreased, by as much as a factor of 10, as the temperature was increased from 23 to 32 °C.

Publisher URL: http://dx.doi.org/10.1021/acs.inorgchem.7b02081

DOI: 10.1021/acs.inorgchem.7b02081

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