Which outcome occurs when a transition metal complex absorbs light matching the d-orbital splitting energy?

💡 Explanation

When light matching the d-orbital splitting energy is absorbed, an electron transitions to a higher energy d-orbital, which weakens the ligand field stabilization energy because the electron now occupies an antibonding orbital. Therefore ligand field stabilization energy decreases, rather than spin pairing, bond contraction, or diamagnetic increase which require distinct mechanisms.

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