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← ScienceWhich outcome reduces catalytic efficiency, when substrate molecule steric impedance misaligns its frontier orbitals with a metal catalyst's orbitals?
A)Reduced density of electronic states
B)Decreased electron transfer probability✓
C)Increased vibrational energy absorption
D)Enhanced ligand field stabilization
💡 Explanation
Decreased electron transfer occurs because the orbital misalignment hinders the **quantum tunneling** process requiring overlap of wave functions, therefore the reaction rate slows, rather than being accelerated, because the ideal transition state is inaccessible.
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