In this complex you're going to see an arrangement with 4 equatorial and 2 axial ligand positions. In such compounds, ligands that are stronger σ-donors and weaker π-acceptors preferentially occupy the axial positions. On the other hand, weaker σ-donors and stronger π-acceptors preferentially o...
Am I missing something? NH3 is higher in the spectrochemical series than H2O, because it is a "better pi acceptor", despite neither of them actually being pi acceptors?
Equatorial positions are electron-rich but axial positions electron-poor, despite the fact that you can rotate 90° and interconvert the two?
The Periodic Table
The Periodic Table