When trying to calculate the structur factor for diamond I came across the calculation on the wikipedia. In the calculation they just add up the atomic form factors of alle the atoms in the unit cell to calculate the structure factor.
However I thought, that the Atomic structure factor is the Fouriertranform of the electron density distribution. As not all atom points in the Diamond lattice are the same (the (1/4,1/4,1/4) Atom electron bounds are rotated 90 Degrees in relation to the (0,0,0) Atom electron bounds), I would expect that due two different electron density funcitons there would be two structure factors in the calculations. Am I missing something?