Sketch qualitatively crystal field d-orbital energy level diagrams for: a. [Ni(en)₃]²⊕ b. [Mn(CN)₆]³⊖ c. [Fe(H₂O)₆]²⊕. Predict whether each is diamagnetic or paramagnetic.

All three are octahedral, so each sketch is the eg-over-t₂g splitting with electrons filled by ligand strength: - **a. [Ni(en)₃]²⁺** — Ni²⁺ d⁸: t₂g⁶ eg² regardless of field → **2 unpaired, paramagnetic**. - **b. [Mn(CN)₆]³⁻** — Mn³⁺ d⁴ with the strong-field CN⁻ → LOW spin t₂g⁴ eg⁰ → **2 unpaired, paramagnetic**. …

Sketch qualitatively crystal field d-orbital energy level diagrams for: a. [Ni(en)₃]²⊕ b. [Mn(CN)₆]³⊖ c. [Fe(H

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Q. Sketch qualitatively crystal field d-orbital energy level diagrams for: a. [Ni(en)₃]²\oplus b. [Mn(CN)₆]³⊖ c. [Fe(H₂O)₆]²\oplus. Predict whether each is diamagnetic or paramagnetic.

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All three are octahedral, so each sketch is the eg-over-t₂g splitting with electrons filled by ligand strength:

a. [Ni(en)₃]²⁺ — Ni²⁺ d⁸: t₂g⁶ eg² regardless of field → 2 unpaired, paramagnetic.
b. [Mn(CN)₆]³⁻ — Mn³⁺ d⁴ with the strong-field CN⁻ → LOW spin t₂g⁴ eg⁰ → 2 unpaired, paramagnetic. …

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Q.Sketch qualitatively crystal field d-orbital energy level diagrams for: a. [Ni(en)₃]²⊕ b. [Mn(CN)₆]³⊖ c. [Fe(H₂O)₆]²⊕. Predict whether each is diamagnetic or paramagnetic.

Concept understanding — Crystal Field Theory

Q.Sketch qualitatively crystal field d-orbital energy level diagrams for: a. [Ni(en)₃]²⊕ b. [Mn(CN)₆]³⊖ c. [Fe(H₂O)₆]²⊕. Predict whether each is diamagnetic or paramagnetic.

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