Effect of organic polycarboxylates on the architectures of cadmium(II) coordination polymers based on dipyrazino[2,3-f:2′3′-h]quino-xaline: Syntheses, crystal structures, and photoluminescence properties

► The complexes based on polycarboxylates L1 and L2 have been scarcely studied so far. ► Complex 3 shows a two-dimensional structure based on tetra-nuclear CdII clusters. ► Polycarboxylates with different coordination sites have great effect on complexes. ► The fluorescent properties of complexes 1-3 have been reported.