Abstract
Self-assembly of Zn2+, the pillar ligand N,N′-bis(4-pyridylformamide)-1,4-benzene, and [M(CN)4]2− (M = Ni, Pd, or Pt) formed three compounds [Zn(L)(H2O)2][M(CN)4]·3H2O (1–3). Single-crystal X-ray diffraction (XRD) analysis reveals that 1–3 are isostructural and consist of cyanide-bridged 2-D grid-type layers built of [Zn(L)(H2O)2]2+ chains cross-linked by [M(CN)4]2− units. Thermogravimetric and powder XRD analyses indicate that 1 has a high thermal stability and exhibits reversibility for desorption/resorption of water guest molecules.
Acknowledgments
This research was supported by the projects of National Natural Science Foundation (51072072, 51102119, 51272095), Natural Science Foundation of Jiangsu Province (BK2011518).