Highly Hydrophobic Isoreticular Porous Metal-Organic Frameworks for the Capture of Harmful Volatile Organic Compounds
作者:Natalia M. Padial、Elsa Quartapelle Procopio、Carmen Montoro、Elena López、J. Enrique Oltra、Valentina Colombo、Angelo Maspero、Norberto Masciocchi、Simona Galli、Irena Senkovska、Stefan Kaskel、Elisa Barea、Jorge A. R. Navarro
DOI:10.1002/anie.201303484
日期:2013.8.5
Tunable hydrophobicity: Efficient air filters for the protection against chemical warfare agents might be achieved by surface functionalization of the pores in robust metal–organicframeworks (MOFs) with fluoroalkyl residues and the precise control of their pore size (see picture). These MOFs captureharmfulvolatileorganiccompounds even under extremely moist conditions (80 % relative humidity).
作者:Adam Jaffe、Michael E. Ziebel、David M. Halat、Naomi Biggins、Ryan A. Murphy、Khetpakorn Chakarawet、Jeffrey A. Reimer、Jeffrey R. Long
DOI:10.1021/jacs.0c06570
日期:2020.8.26
oxygen from air remains a significant challenge. Here, we show that chemically reduced metal-organicframework materials of the type AxFe2(bdp)3 (A = Na+, K+; bdp2- = 1,4-benzenedipyrazolate; 0 < x ≤ 2), which feature coordinatively saturated iron centers, are capable of strong and selective adsorption of O2 over N2 at ambient (25 °C) or even elevated (200 °C) temperature. A combination of gas adsorption
Efficient and chromatography-free methodology for the modular synthesis of oligo-(1 H -pyrazol-4-yl)-arenes with controllable size, shape and steric bulk
作者:Laurence J. Kershaw Cook、Rachel Kearsey、Jessica V. Lamb、Edward J. Pace、Jamie A. Gould
DOI:10.1016/j.tetlet.2016.01.043
日期:2016.2
oligo-(1H-pyrazol-4-yl)-arenes with controllable size, shape and steric bulk from 1-trityl-1H-pyrazol-4-ylboronate pinacol esters. This straightforward and efficient procedure can be applied to a variety of brominated aromatic precursors in a manner which leaves the pyrazole NH intact for further modification or coordination to metal ions. This will enable the synthesis of novel bioactive molecules and
一种从1 -trityl -1 H -pyrazol-4-ylboronate频哪醇酯合成具有可控制的大小,形状和空间体积的低聚(-1 H -pyrazol-4-yl)-芳烃的新方法。这种简单有效的方法可以以使吡唑NH完好无损地进一步修饰或配位到金属离子的方式应用于各种溴化芳族前体。这将能够合成新颖的生物活性分子和分子材料前体,而无需任何标准纯化和磨碎纯化技术即可实现。
An alkaline-resistant Ag(<scp>i</scp>)-anchored pyrazolate-based metal–organic framework for chemical fixation of CO<sub>2</sub>
作者:Huimin Yang、Xu Zhang、Guiyang Zhang、Honghan Fei
DOI:10.1039/c8cc01461b
日期:——
An alkaline-resistant Ag(i)-anchored metal–organic framework has been achieved via postsynthetic modification of pyrazolate-based linkers.
一种耐碱性的Ag(i)锚定金属有机框架已经通过对基于吡唑酮的连接剂进行后合成修饰而实现。
The fixation of CO<sub>2</sub> by epoxides over nickel-pyrazolate-based metal–organic frameworks
4-(4-bispyrazolyl)benzene and 1,3,5-tris(1H-pyrazol-4-yl)benzene, respectively. The unsaturated metal centers (or Lewis acid sites) in the MOFs play a key role in the cycloaddition of CO2 and epoxide. The catalytic performance of the catalysts is significantly influenced by the density and accessibility of Lewis acid sites. Moreover, the recyclability of the MOF catalysts was studied as well.