Two new zinc phosphates, [C 8 N 4 H 2 6 ][Zn 2 (HPO 4 ) 4 ] (I) and [C 8 N 4 H 2 6 ][Zn 6 (PO 4 ) 4 (HPO 4 ) 2 ] (II) have been synthesized employing solvothermal reactions in the presence of N,N ' (3-bisaminopropyl)-1,2-ethylenediamine. The structure of I consists of ZnO 4 and HPO 4 tetrahedra, forming four-membered rings, which are connected edgewise giving rise to the one-dimensional ladders. HPO 4 units also hang from the Zn center into the inter-ladder spaces along with the organic amine molecules. In II, the connectivity between ZnO 4 , PO 4 and HPO 4 tetrahedral units gives rise to a two-dimensional layered structure with eight-membered apertures. The amine molecule occupies the center of these apertures and interacts with the layer through hydrogen bonds. The formation of one-dimensional tube-like structure in II is noteworthy.