In hydrolysis and electro-oxidation of the borohydride anion BH4−, key reactions in the field of energy, one critical short-living intermediate is BH3OH−. When water was used as both solvent and reactant, only BH3OH− is detected by 11B NMR.

Mar 18, 2022 · In hydrolysis and electro-oxidation of the borohydride anion BH4−, key reactions in the field of energy, one critical short-living intermediate is BH3OH−. When water was used as both solvent and reactant, only BH3OH− is detected by 11B NMR.

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1H and 11B NMR measurements were performed to study BH4 reorientations and diffusion in four samples of Mg(BH4)2. These include the low (α) and high (β) temperature bulk solid phases, α-phase mater...

Mar 18, 2022 · In hydrolysis and electro-oxidation of the borohydride anion BH 4-, key reactions in the field of energy, one critical short-living intermediate is BH 3 OH -. When water was used as both solvent and reactant, only BH 3 OH - is detected by 11 B NMR.

Sep 1, 2007 · A new, fast, one-pot method of sodium/potassium hydroxyborohydride preparation is presented, along with the 1 H NMR spectrum of hydroxyborohydride, recorded for the first time. Additionally, NMR studies demonstrated higher reactivity of hydroxyborohydride than borohydride toward acetone carbonyl.

To study the reorientational motion of the BH 4 groups in RbBH 4 and CsBH 4, we have performed nuclear magnetic resonance (NMR) measurements of the 1 H and 11 B spin–lattice relaxation rates in these compounds over wide ranges of temperature (48–400 K) and resonance frequency (14–90 MHz).

The α phase of Ca(BH4)2 is characterized by the activation energy of 286 ± 7 meV. For the novel porous γ phase of Mg(BH4)2, the main reorientational process responsible for the observed spin–lattice relaxation rate maximum can be described by the activation energy of 276 ± 5 meV.

Based on ¹¹B NMR analysis, a reaction mechanism of the hydrolysis of BH4⁻ ionic liquid with HCl as catalyst is proposed.

Sep 1, 2005 · A simple and remarkably accurate method for estimating the isotopic ratio between 10B and 11B through the use of 1H nuclear magnetic resonance (NMR) spectroscopy is presented.