There are numerous reports , including those for UTL, which use F MAS NMR spectra to determine the germanium distribution (counts) among the F -containing-D4R units (note that, commonly, the D4R units are the only structural units assumed to be occupied by germanium a priori). However, a few recent computational studies for STW , ITH and SOR germanosilicates show convincingly, that using the 1D NMR spectra, one is able to differentiate at best only amongst the purely siliceous D4Rs, those D4Rs containing isolated Ge atoms and those with at least one Ge-O-Ge link. In addition, even the ability to determine the location of F -anion within the framework (e.g., whether it is located in the D4R unit or in other parts of the framework) using F NMR was indicated to be limited to the purely siliceous case, i.e, the F NMR does not differentiate well between the cases with F - located in D4R or other structural units (e.g. in the ] cage of ITH), unless the unit is purely siliceous. Therefore, we refrain from discussing the experimental data on germanium distributions, which are based only on the F MAS NMR spectra in the following.