Synthesis, structural features, magnetic properties and thermal decomposition of a new series of polymeric Ln(iii)–Cr(iii) cyclopropane-1,1-dicarboxylates

In a new series of Ln III –Cr III cyclopropane-1,1-dicarboxylates, a decrease in the Ln 3+ ionic radius leads to a change in a space group and the transition of a 3D framework structure (Ln = Eu, Gd, Tb) into a 2D layered one (Ln = Dy, Ho, Y, Er, Yb).