“…In two previous papers [2,3] we have described the synthesis and crystal structures of six new rare earth basic nitrate hydrates (LnBN), namely those of Y, Sm, Gd, Dy, Er, and Yb. Extending these investigations, however, we have also managed to prepare representatives of some more rare earth elements by varying the conditions of crystallization (especially temperature and concentration of Ln(NO 3 ) 3 in the solution), and we were also successful to obtain several different phases differing by their number of noncoordinated H 2 O molecules for the same rare earth element.…”