Citation: Wang, Xiu-Li; Mu, Bao; Lin, Hong-Yan; Liu, Guo-Cheng; Tian, Ai-Xiang; Yang, Song (2012). Assembly and property of four 2D layer-like coordination polymers with different structural features derived from bis(3-pyridylformyl)piperazine ligand and aromatic dicarboxylic acids with nitro group. CrystEngComm, 14, pp. 1001-.