In 1 the chains are connected by the dicarboxylate ligands into a 3D framework with the pts topology, which is reinforced by interchain zipper-like π–π stacking arrays of the phen ligands. Differently, the chains in 2 are connected by the dicarboxylate ligands into 2Dnetworks, which are pillared by the 4,4′-bipy ligands to generate a 3D framework with the new topology (44 × 62)(44 × 610 × 8). Compound
Tuning Regioisomer Reactivity in Catalysis using Bifunctional Metal-Organic Frameworks with Mixed Linkers
作者:Xiaoying Xu、Jeroen A. van Bokhoven、Marco Ranocchiari
DOI:10.1002/cctc.201402164
日期:2014.7
The activity of two bifunctionalmetal–organicframeworks (MOFs) with IRMOF‐9 topology that contain amino, phosphine oxide and methyl groups is described. The amino group acts as an active site for the Knoevenagel condensation of ortho, meta or para nitrobenzaldehyde and malononitrile, while the non‐active site diphenylphosphoryl or methyl group moderate the spatial characteristics inside the MOF pores
Two series of cationic dyes, named DM-n and DP-n, were encapsulated in three anionic isostructural MOFs with a 1D channel. Ordered arrangement of the dyes in the channel was investigated by using the microscope polarized absorption spectra of different dye and MOF composites. Furthermore, the tunable secondordernonlinearopticalproperties of these MOF⊃dye materials were observed.
Sulfur-tagged metal–organic frameworks and their post-synthetic oxidation
作者:Andrew D. Burrows、Christopher G. Frost、Mary F. Mahon、Christopher Richardson
DOI:10.1039/b906170c
日期:——
A series of sulfur-tagged zinc MOFs containing functionalised 4,4â²-biphenyldicarboxylate ligands has been prepared: oxidative post-synthetic modification with dimethyldioxirane has converted the sulfide tags into sulfones, leaving the MOF networks intact.