A　novel　heterometallic　diPd(II)-diCu(II)　grid-chain,　{[(bpy)(4)Pd4Cu2L4](NO3)(4)}(n)　(2;　bpy=2,2-bipyridine),　was　synthesized　through　a　programmable　self-assembly　approach　from　the　molecular　corners　[(bpy)(2)Pd-2(HL)(L)](NO3)　(1)　as　linkers　with　Cu-II　nitrate　by　using　the　bifunctional　H2L　ligand　featuring　primary　(pyrazole)　and　secondary　(benzoic　acid)　groups.　Structural　analysis　revealed　that　1D　structure　2　consists　of　one　[Cu-2(O2CPh)(4)](n)　unit　as　a　bridge　and　two　[(bpy)(2)Pd2L2](n)　corners.　Additionally,　the　catalytic　effect　of　the　heterometallic　synergy　on　the　Suzuki　coupling　reaction　by　using　2　was　further　explored.