Journal
INORGANIC CHEMISTRY
Volume 57, Issue 6, Pages 3197-3205Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b03232
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Funding
- European Marie Curie Actions under ECOSTORE grant [607040]
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The crystal structure of a mixed amide-imide phase, RbMgND2ND, has been solved in the orthorhombic space group Pnma (a = 9.55256(31), b = 3.70772(11) and c = 10.08308(32) A). A new metal amide hydride solid solution, Rb(NH2)(x)H(1-x), has been isolated and characterized in the entire compositional range. The profound analogies, as well as the subtle differences, with the crystal chemistry of KMgND2ND and K(NH2)(x)H1-x are thoroughly discussed. This approach suggests that the comparable performances obtained using K- and Rb-based additives for the Mg(NH2)(2)-2LiH and 2LiNH(2)-MgH2 hydrogen storage systems are likely to depend on the structural similarities of possible reaction products and intermediates.
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