A rare (3, 6, 10)-connected net containing both Zn2(COO)4 and Zn4(COO)8 units

A novel coordination polymer [Zn3(btrc)2(L1)]n (1) (H3btrc = 1, 2, 4-benzenetricarboxylic acid; L1 = 1, 3-bis(4-pyridyl)propane) has been synthesized under hydrothermal conditions. Single crystal X-ray diffraction study reveals that polymer 1 presents an unusual example of (3, 6, 10)-connected net with (4·6·7) (52·66·77) (416·512·64·713) topology symbol, where btrc3−, Zn2(CO2)4, and Zn4(CO2)8 units act as three-, six-, and ten-connecting nodes, respectively. In addition, the IR spectra, luminescence properties and thermogravimetric analysis of this polymer are investigated in this study.