“…Also, the role of lanthanide contraction on the choice of structure and symmetry can be understood from such a study. RbLaF 4 (prepared by the solid state reaction between RbF and LaF 3 at high temperatures) crystallizing in orthorhombic structure, fluorite structured RbGdF 4 (obtained as nanocrystals by the wet chemical synthesis) and RbEr 2 F 7 (prepared by the solid state reactions) are worth noting as they have been demonstrated to exhibit interesting optical and magnetic properties [8][9][10][11]. In this paper, synthesis of Rb-RE (RE = Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb)-F compositions by a wet chemical synthesis at room temperature and their characterizations are described.…”