Solvent-Free Synthesis of Crystalline Metal Phosphate Oxalates with a (4,6)-Connected fsh Topology

Two new organically templated manganese phosphate oxalates were synthesized under solvent-free conditions. They have different three-dimensional structures with a (4,6)-connected fsh topology. It is interesting that the amine molecules can reverse the structure-building roles of the metal phosphate skeleton and metal oxalate substructure for formation of their fsh-type frameworks.