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## Crystal Field Splitting Energy ### Octahedral (6) - CPSE (Crystal field splitting energy) = *eg* x 0.6 + *bg* x 0.4 - *eg* (Pairing x) - ΔT = 3 x 0.4 - 4 x 0.6 = 1-2-2-4 = -1.2 ### Tetrahedral (4) - CFSE = *eg* x 0.6 + *bg* x 0.4 - *eg* = 0 x 0.6 + 6 x 0.4 = 2.4 #### Diagrams - A diagram...

## Crystal Field Splitting Energy ### Octahedral (6) - CPSE (Crystal field splitting energy) = *eg* x 0.6 + *bg* x 0.4 - *eg* (Pairing x) - ΔT = 3 x 0.4 - 4 x 0.6 = 1-2-2-4 = -1.2 ### Tetrahedral (4) - CFSE = *eg* x 0.6 + *bg* x 0.4 - *eg* = 0 x 0.6 + 6 x 0.4 = 2.4 #### Diagrams - A diagram of a propeller, labeled "Co(H2O)4) 42 (tetrahedral)" - A diagram of a flower with 4 petals, labeled "Tetrahedral (4)" - A diagram of a flower with 6 petals, labeled "Octahedral (6)" #### Calculations - Fe = 4s3d6 - Fe2+ = 4s3d6 - Co = 4s3d7 - Co+² = 4s3d7 #### Cases * **Case A=0** - 11 11 11 11 - +0.6 - -0.4 - 11 11 11 11 * **Case A > 0** - 1 1 1 1 1 1 7 7 - +0.6 - -0.4 - 1 1 1 1 1 1 7 7