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← ScienceWhich limit arises when excessive electron delocalization reduces magnetism?
A)Reduced Hund's rule exchange energy✓
B)Increased nuclear shielding anisotropy
C)Vibronic coupling energy dissipation
D)Enhanced spin-orbit cascading effect
💡 Explanation
Reduced magnetism appears because excessive delocalization weakens Hund's rule exchange energy, because orbital overlap stabilizes anti-parallel spins rather than parallel ones. Therefore, magnetic susceptibility decreases, rather than seeing nuclear shielding effects dominate or vibrational energy changes.
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