Table 1. Percentage-wise Orbital Decomposition of the Occupied Fe 3d Orbitals Yielding Changes in π-Backdonation and π-Bonding between the Gas Phase and the Reduced Solvation Modela.
| occ.
Fe 3d |
occ. CN–(σ) | ||||
|---|---|---|---|---|---|
| Fe(t2g) | CN–(π*) | CN–(π) | bpy(π*) | Fe(eg) | |
| gas phase | 74.4 | 4.2 | 11.0 | 6.3 | 10.8 |
| solvated | 78.4 | 5.7 | 7.5 | 3.2 | 5.2 |
Changes in σ-donation are presented as the Fe eg-contribution to a set of CN– orbitals of dominantly σ-character.