Two　Zn(II)　and　Cd(II)　compounds　with　the　in-situ　generated　ligand　of　5-amino-tetrazolate　(atz(-))　were　prepared　from　the　hydrothermal　reactions　of　the　corresponding　Cd　or　Zn(II)　salts　with　phenylcarboxylate,　and　characterized　by　elemental　analysis,　IR　spectroscopy,　and　TGA.　The　results　of　X-ray　crystallographic　analysis　reveal　that　compound　[Zn-2(BZA)(atz)(2)(OH)](n)　(1)　(BZA=benzoic　acid)　presents　a　two-dimensional　(2D)　＂hcla＂　topological　network　constructed　from　the　ZnN2O2　tetrahedra.　In　compound　[Cd-6(atz)(6)(PTA)(3)](n)　(2)　(PTA=terephthalic　acid),　the　identical　[Cd-3(atz)(3))](n)(3+)　clusters　are　connected　by　atz　ligands　to　generate　a　2D　cationic　layer,　and　the　neighboring　cationic　layers　are　pillared　by　PTA　giving　birth　to　3D　network.　After　simplifying,　the　complicated　3D　network　of　2　can　be　presented　as　an　unprecedented　(4,　4,　10)-connected　trinodal　topology.　The　formations　of　the　structures　show　a　good　example　that　using　the　combination　of　the　in-situ　generated　ligand　and　other　coligand　synthetic　strategy　can　construct　interesting　topological　structures.　The　thermal　stabilities　and　fluorescent　properties　of　the　complexes　have　also　been　studied.　Crown　Copyright　(C)　2012　Published　by　Elsevier　Inc.　All　rights　reserved.