Post-synthetic modified MOF for Sonogashira cross-coupling and Knoevenagel condensation reactions
作者:Chizoba I. Ezugwu、Bibimaryam Mousavi、Md. Ali Asraf、Zhixiong Luo、Francis Verpoort
DOI:10.1016/j.jcat.2016.10.015
日期:2016.12
(1) which was synthesized by solvothermal reaction of 1,3-bis(4-carboxyphenyl)imidazolium chloride (H2L+Cl−) and Zn(NO3)2·6H2O. This new material, 1-Pd, was characterized by PXRD, TGA, SEM, TEM, 1H and 13C NMR, FTIR and XPS measurements. This catalyst exhibited an excellent activity for both Sonogashira cross-coupling and Knoevenagel condensation reaction retaining its catalytic and uniform distribution
High Proton Conductivity by a Metal–Organic Framework Incorporating Zn<sub>8</sub>O Clusters with Aligned Imidazolium Groups Decorating the Channels
作者:Susan Sen、Nisanth N. Nair、Teppei Yamada、Hiroshi Kitagawa、Parimal K. Bharadwaj
DOI:10.1021/ja3076378
日期:2012.11.28
A novel Metal organic framework (Zn-0.25)(8)(O)}Zn-6(L)(12)(H2O)(29)(DMF)(69)(NO3)(2)](n) (1) H2L = 1,3-bis(4-carbcixYphehyl)imidaiolitirn}, has been synthesized. under solvothermal conditions in good yield. It shows a Zn-80, cluster that is coordinated to six ligands and forms an overall three-dimensional structure with channels along the crystallographic a and b axes. The imidazolium groups of the ligand Moiety are aligned in the channels., The channels are not.. empty but are occupied by a large number of DMF and water Molecules: Upon heating these Solvent molecules can be removed withont:breakdown,of the overall structure of the framework as shown by variable temperature powder X-ray diffraction patterns. Of great interest is the fact that the compound exhibits high proton conductivity with a low activation energy that is comparable to those of Nafion presently used in fuel cells.
Noble metal-free Cu(<scp>i</scp>)-anchored NHC-based MOF for highly recyclable fixation of CO<sub>2</sub> under RT and atmospheric pressure conditions
作者:Rajesh Das、C. M. Nagaraja
DOI:10.1039/d1gc01312b
日期:——
Noble metal-free, Cu(i) anchored N-heterocyclic carbene (NHC)-MOF exhibiting highly efficient fixation of CO2 into oxazolidinones, important building blocks for antibiotics at RT and atmospheric pressure conditions is presented.
无贵金属,Cu(i) 锚定的 N-杂环卡宾(NHC)-MOF 在室温和大气压条件下展现出高效固定 CO2 到噁唑烷酮中,这是抗生素的重要组成部分。