It is obvious that the counter anion Ph3AlCl of precursor B in contrast to Ph4Al of precursor A, leads to the formation of the Mg 2+ cation in the presence of DME and DG ligands. We characterized both compounds via multi-nuclear NMR (see figure and S6, respectively), and single crystal x-ray diffractometer (see figure and represented by a galvanostatic measurement, since this is the real cell conditions. Indeed, by applying GV studies of the CE the reversibility is profoundly improved and in a very good level >99.1% in macrocycling experiment. A more comprehensive study of these electrolytes in various electrochemical conditions is beyond the current report which focus more on the new synthesis methodology and control over ligand.