%0 Journal Article %T Piperazinediium, Zr(IV) and Ce(IV) pyridine-2,6-dicarboxylates: Syntheses, characterizations, crystal structures, ab initio HF, DFT calculations and solution studies %A Hossein Aghabozorg %A Elham Motieiyan %A Salimi, Alireza %A Mirzaei Shahrabi, Masoud %A Faranak Manteghi %A Ardeshir Shokrollahi %A Somayeh Derki %A Mohammad Ghadermazi %A Shabnam Sheshmani %A Eshtiagh Hosseini, Hossein %J Polyhedron %@ 0277-5387 %D 2010