Stitching 2D Polymeric Layers into Flexible Interpenetrated Metal-Organic Frameworks within Single Crystals

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...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2014-04, Vol.53 (18), p.4628-4632
Main Authors: Zhang, Zi-Xuan, Ding, Ni-Ni, Zhang, Wen-Hua, Chen, Jin-Xiang, Young, David J., Hor, T. S. Andy
Format: Article
Language:English
Subjects:
2,2'-Dipyridyl - chemistry
Cadmium - chemistry
cadmium cluster
Carbon Dioxide - chemistry
Channels
coordination modes
Crystal lattices
Crystallinity
Crystallography, X-Ray
Diffusion
Dimethylformamide - analogs & derivatives
Dimethylformamide - chemistry
layered compounds
Ligands
Metal-organic frameworks
Models, Molecular
Nitrogen - chemistry
Organometallic Compounds - chemistry
Polymers - chemistry
Porosity
Stitches
Stitching
structure elucidation
Two dimensional
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Summary: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. All stitched up: Dipyridyl ligands were found to diffuse into the channels in the crystal lattice of a two‐dimensional polymeric complex. The absorbed dipyridyls thread through the pores of one layer and substitute the surface solvent molecules on the neighboring layers to stitch alternate layers to form flexible interpenetrated metal–organic frameworks (see picture).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201311131