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← ScienceWhich mechanism prevents spontaneous hydride transfer when dissolving LiAlH4?
A)Orbital symmetry conservation✓
B)VSEPR steric repulsion
C)Resonance stabilisation
D)Marcus electron transfer theory
💡 Explanation
Orbital symmetry conservation prevents facile hydride bridges lowering reaction energy because the proper orbital alignment for hydride donation is not achieved. Therefore no immediate reduction occurs unless a suitable substrate is targeted, rather than bulk solvent decomposition.
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