Metathesis of alkali-metal amidoborane and FeCl3 in THF

Abstract

Metathesis of LiNH

Post-synthetic cation exchange in the robust metal–organic framework MIL-101(Cr)

“…This, in conjunction with the symmetrical crystal structure built up of octahedral Fe(III) centres interconnected by twocoordinate chloride ligands yields practically zero quadrupole splitting and a typical δ = 0.42 mm s −1 (α-Fe) HS ferric isomer shift at ambient temperature. 19 Conversely, the pure MIL-101(Fe) spectrum features one symmetrical doublet, representing a HS ferric site in a less symmetrical octahedral environment, of which the fairly large, Δ = 0.64 mm s −1 , quadruple splitting gives evidence (Fig. 2, Table 1).…”

Metal Amidoboranes and Their Derivatives for Hydrogen Storage

“…A large amount of H 2 with NH 3 impurity was released from freshly prepared sample upon heating to 250 °C. Motivated by the synthesis of YAB, the attempt to synthesize iron (III) amidoborane (Fe(NH 2 BH 3 ) 3 , FeAB) through metathesis of FeCl 3 and three equivalent LiAB in THF was unsuccessful [57]. Instead of FeAB formation, 1.5 Eq of H 2 was released and a black solid containing LiCl was produced.…”

Rapidly Releasing over 9 wt % of H2 from NH3BH3–Mg or NH3BH3–MgH2 Composites around 85 °C

“…Incorporation of AB in nanoscaffolds, , catalytic solvolysis of AB by transition metal or acids, − and addition of chemical promoters − all have proven effective at promoting hydrogen release from AB. In particular, chemical modification of AB by substituting one amine hydrogen of AB with alkali and/or alkaline earth metal via mechanochemical or wet-chemistry methods has led to the synthesis of a series of mono- and mixed-metal amidoboranes. − These new derivatives typically exhibited improved dehydrogenation properties with respect to the parent AB in terms of reduced threshold temperatures, accelerated dehydrogenation rates, and suppressed toxic gaseous byproducts.…”