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

摘要

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) (5~2 · 6~6 · 7~7) (4~(16)·5~(12)·6~4·7~(13)) topology symbol, where btrc~(3-), 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.