“…Tin is the nearest neighbor of germanium in group 14. Currently, its coordination derivatives are used as materials for the manufacture of optoelectronic devices, 8 organic lightemitting diodes, 9 solar cells, 10,11 fluorescence bioimaging, 12,13 etc. In this case, one of the most frequently used ligands (as in the coordination chemistry of other elements) are Schiff bases.…”