A nanosized porous metal-organic framework assembled with mutually interdigitated two-dimensional coordination motifs

A metal-organic framework based on silver(I) and mixed ligands {[Ag2(ibpa)2(bpp)2]·5H2O}n (1) (Hibpa = 4-isobutyl-α-methylphenylacetic acid, bpp = 1,3-di(4-pyridyl)propane) has been synthesized by the solvothermal reaction. Single crystal X-ray diffraction revealed that 1 has a two-dimensional (2D) layer motif, and the layers of 1 are further mutually interdigitated to give rise to a 3D nanosized porous framework in the dimension of 13.23 × 13.19 Å. Interestingly, the host framework encapsulates unique hexamer water clusters and is further connected into (H2O)6n tapes by water–water hydrogen bonding interactions. Thermogravimetric analysis (TGA) was conducted to determine the thermal stability of 1.