2002/05/01 by Mikhail Y. Redko, Mircea Vlassa, James E. Jackson +3 · 3 citations
Materials Science · Chemistry · #Hydrogen Storage and Materials #Metal-Organic Frameworks: Synthesis and Applications #Covalent Organic Framework Applications
paper · doi:10.1021/ja025655+
openalex publication_date 2002/05/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/06/26
A crystalline salt has been synthesized that contains H(+) and Na(-) rather than the usual hydride oxidation states of H(-) and Na(+). The key is irreversible encapsulation of H(+) within the cage of 3(6)adamanzane (Adz). The internal proton is kinetically inert to reduction by Na(-) in solution in NH(3)-MeNH(2) mixtures. Synthesis of the sodide is accomplished by a metathesis reaction between Na and AdzH(+)X(-) in which X(-) is a sacrificial anion such as glycolate, isethionate, or nitrate. Reduction or deprotonation of the sacrificial anion forms insoluble byproducts and AdzH(+)Na(-) in solution. After solvent removal, the sodide is dissolved in dimethyl ether and transferred through a frit into a separate chamber for crystallization. The compound was characterized as the sodide by analysis, NMR spectra, and optical absorption spectroscopy.