Synthesis, crystal structure and luminescent property of heterometallic d10–d8 porous complex

• One new heterometallic complex with benzene-1,3,5-tricarboxylate and the mixture of Cd(II) and Cu(II) salts.
• Complex 1 displays (4,6)-connected open 3D framework with 1D channels.
• Thermal gravimetric analysis (TGA) and luminescent property of 1 were investigated.

One new heterometallic complex [Cd2Cu(BTC)2(H2O)2]⋅2H2O (1) (BTC = benzene-1,3,5-tricarboxylate), has been synthesized and characterized by elemental analysis and single-crystal X-ray diffraction techniques. The structure indicates that the complex 1 crystallizes in triclinic, space group Pī, in which, the carboxylate groups of BTC ligand adopt μ2–η1:η1, and μ2–η2:η1 coordination modes, bridging Cd(II) and Cu(II) atoms to generate 2D Cd-BTC bilayer then to a (4,6)-connected open 3D framework with 1D channels occupied by guest water molecules. In addition, thermal gravimetric analysis (TGA) and luminescent property of 1 were investigated.