ChemInform Abstract: Liquefaction of Solid‐State BH₃NH₃ by Gaseous NH₃.

Abstract

Liquefaction of Solid-State BH 3 NH 3 by Gaseous NH 3 . -Under 1-4 bar ammonia, H3NBH3 (AB) reversibly absorbs up to 6 equivalents of NH3 forming liquid AB(NH3)n (n = 1-6) complexes at 0°C. The structures of these complexes are characterized by DFT calculations and Raman spectroscopy. The new phenomena displayed by reversible ammonia absorption/desorption of ammonia borane may be of value for some potential applications, for example, separation and purification technologies for ammonia borane, loading into multiple-pore materials, and pressure sensitive materials for ammonia storage. -(GAO, L.; FANG, H.; LI, Z.; YU*, X.; FAN, K.; Inorg. Chem. 50 (2011) 10, 4301-4306, http://dx.

Efficient Synthesis of an Aluminum Amidoborane Ammoniate

“…Under these conditions, ammonia borane reversibly absorbs up to 6 equivalents of NH3, forming liquid NH3BH3·nNH3 (n = 1-6) complexes [19]. AlH3·OEt2, which is insoluble in NH3BH3·nNH3, was utilized as a highly reactive Al source [20,21].…”