title: Stitching 2D polymeric layers into flexible interpenetrated metal-organic frameworks within single crystals.
abstract: A 2D coordination polymer prepared with bulky diethylformamide solvates exhibits channels which allow dipyridyl bridging ligands to diffuse into the crystal lattice. The absorbed dipyridyls thread through the pores of one layer and substitute the surface diethylformamide molecules on the neighboring layers to stitch alternate layers to form flexible interpenetrated metal-orgaic frameworks. The threading process also results in exchange of the bulky diethylformamide solvates for aqua to minimize congestion and, more strikingly, forces the slippage of two-dimensional layers, while still maintaining crystallinity.
authors.affiliation: Institute of Materials Research and Engineering (IMRE) Agency for Science, Technology and Research (A*STAR), 3 Research Link, 117602 Singapore (Singapore).
authors.forename: Zi-Xuan
authors.initials: ZX
authors.lastname: Zhang
authors.forename: Ni-Ni
authors.initials: NN
authors.lastname: Ding
authors.forename: Wen-Hua
authors.initials: WH
authors.lastname: Zhang
authors.forename: Jin-Xiang
authors.initials: JX
authors.lastname: Chen
authors.forename: David J
authors.initials: DJ
authors.lastname: Young
authors.forename: T S Andy
authors.initials: TS
authors.lastname: Hor
mesh_terms: D015082:2,2'-Dipyridyl / Q000737:chemistry; D002104:Cadmium / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry; D018360:Crystallography, X-Ray; D004126:Dimethylformamide / Q000031:analogs & derivatives / Q000737:chemistry; D008958:Models, Molecular; D009584:Nitrogen / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D011108:Polymers; D002104:Cadmium; D002245:Carbon Dioxide; D015082:2,2'-Dipyridyl; C105334:N,N-diethylformamide; D004126:Dimethylformamide; D009584:Nitrogen
keywords: cadmium cluster; coordination modes; layered compounds; metal-organic frameworks; structure elucidation