In this paper the synthesis and characterization of CdTe nanocrystals are presented. Opposite: to what has been observed with Cd1-yMyS, it has been impossible to include manganese ions in CdTe matrices Only large rods of telluride were seen. ZnTe could also not be formed and again only Te rods were perceived. This clearly indicates that chemistry in colloidal sell-assemblies is not always similar to that in homogeneous solutions.