ChemInform Abstract: Robust and Porous β-Diketiminate-Functionalized Metal-Organic Frameworks for Earth-Abundant-Metal-Catalyzed C-H Amination and Hydrogenation.

ChemInform ◽  
2016 ◽  
Vol 47 (33) ◽  
Author(s):  
Nathan C. Thacker ◽  
Zekai Lin ◽  
Teng Zhang ◽  
James C. Gilhula ◽  
Carter W. Abney ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Earth Abundant ◽  
Metal Organic ◽  
Metal Catalyzed

Robust and Porous β-Diketiminate-Functionalized Metal–Organic Frameworks for Earth-Abundant-Metal-Catalyzed C–H Amination and Hydrogenation

2016 ◽  
Vol 138 (10) ◽  
pp. 3501-3509 ◽  
Author(s):  
Nathan C. Thacker ◽  
Zekai Lin ◽  
Teng Zhang ◽  
James C. Gilhula ◽  
Carter W. Abney ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Earth Abundant ◽  
Metal Organic ◽  
Metal Catalyzed

scholarly journals Homocoupling Reactions of Azoles and Their Applications in Coordination Chemistry

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5950
Author(s):  
Steffen B. Mogensen ◽  
Mercedes K. Taylor ◽  
Ji-Woong Lee
Keyword(s):  
Coordination Chemistry ◽  
Reaction Mechanisms ◽  
Metal Organic Frameworks ◽  
Ring System ◽  
Membered Ring ◽  
Materials Chemistry ◽  
Structural Class ◽  
Basic Nitrogen ◽  
Metal Organic ◽  
Metal Catalyzed

Pyrazole, a member of the structural class of azoles, exhibits molecular properties of interest in pharmaceuticals and materials chemistry, owing to the two adjacent nitrogen atoms in the five-membered ring system. The weakly basic nitrogen atoms of deprotonated pyrazoles have been applied in coordination chemistry, particularly to access coordination polymers and metal-organic frameworks, and homocoupling reactions can in principle provide facile access to bipyrazole ligands. In this context, we summarize recent advances in homocoupling reactions of pyrazoles and other types of azoles (imidazoles, triazoles and tetrazoles) to highlight the utility of homocoupling reactions in synthesizing symmetric bi-heteroaryl systems compared with traditional synthesis. Metal-free reactions and transition-metal catalyzed homocoupling reactions are discussed with reaction mechanisms in detail.

Phenanthroline-based metal–organic frameworks for Fe-catalyzed Csp3–H amination

2017 ◽  
Vol 201 ◽  
pp. 303-315 ◽  
Author(s):  
Nathan C. Thacker ◽  
Pengfei Ji ◽  
Zekai Lin ◽  
Ania Urban ◽  
Wenbin Lin
Keyword(s):  
Catalytic Activity ◽  
Active Catalyst ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Organic Transformations ◽  
Organic Azides ◽  
Highly Active ◽  
Earth Abundant ◽  
Metal Organic ◽  
Highly Porous

We report here the synthesis of a robust and highly porous Fe-phenanthroline-based metal–organic framework (MOF) and its application in catalyzing challenging inter- and intramolecular C–H amination reactions. For the intermolecular amination reactions, a FeBr2-metalated MOF selectively functionalized secondary benzylic and allylic C–H bonds. The intramolecular amination reactions utilizing organic azides as the nitrene source required the reduction of the FeBr2-metalated MOF with NaBHEt3 to generate the active catalyst. For both reactions, Fe or Zr leaching was less than 0.1%, and MOFs could be recycled and reused with no loss in catalytic activity. Furthermore, MOF catalysts were significantly more active than the corresponding homogeneous analogs. This work demonstrates the great potential of MOFs in generating highly active, recyclable, and reusable earth abundant metal catalysts for challenging organic transformations.

scholarly journals Metal-organic frameworks tailor the properties of aluminum nanocrystals

2019 ◽  
Vol 5 (2) ◽  
pp. eaav5340 ◽  
Author(s):  
Hossein Robatjazi ◽  
Daniel Weinberg ◽  
Dayne F. Swearer ◽  
Christian Jacobson ◽  
Ming Zhang ◽  
...  
Keyword(s):  
Shell Growth ◽  
Metal Organic Frameworks ◽  
Optical Probe ◽  
Reverse Water Gas Shift ◽  
Earth Abundant ◽  
Hydrogen Deuterium ◽  
Metal Organic ◽  
Aluminum Nanocrystals ◽  
Water Gas ◽  
Recent Attention

Metal-organic frameworks (MOFs) and metal nanoparticles are two classes of materials that have received considerable recent attention, each for controlling chemical reactivities, albeit in very different ways. Here, we report the growth of MOF shell layers surrounding aluminum nanocrystals (Al NCs), an Earth-abundant metal with energetic, plasmonic, and photocatalytic properties. The MOF shell growth proceeds by means of dissolution-and-growth chemistry that uses the intrinsic surface oxide of the NC to obtain the Al3+ ions accommodated into the MOF nodes. Changes in the Al NC plasmon resonance provide an intrinsic optical probe of its dissolution and growth kinetics. This same chemistry enables a highly controlled oxidation of the Al NCs, providing a precise method for reducing NC size in a shape-preserving manner. The MOF shell encapsulation of the Al NCs results in increased efficiencies for plasmon-enhanced photocatalysis, which is observed for the hydrogen-deuterium exchange and reverse water-gas shift reactions.

Toward Ultimate Control of Radical Polymerization: Functionalized Metal–Organic Frameworks as a Robust Environment for Metal-Catalyzed Polymerizations

2018 ◽  
Vol 30 (9) ◽  
pp. 2983-2994 ◽  
Author(s):  
Hui-Chun Lee ◽  
Jongkook Hwang ◽  
Uwe Schilde ◽  
Markus Antonietti ◽  
Krzysztof Matyjaszewski ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Metal Catalyzed ◽  
Ultimate Control

Metal-Organic Frameworks

2021 ◽  
Author(s):  
Lars Öhrström ◽  
Francoise M. Amombo Noa
Keyword(s):  
Metal Organic Frameworks ◽  
Metal Organic

Substrate templated synthesis of single-phase and uniform Zr-porphyrin-based metal–organic frameworks

2020 ◽  
Vol 7 (1) ◽  
pp. 221-231
Author(s):  
Seong Won Hong ◽  
Ju Won Paik ◽  
Dongju Seo ◽  
Jae-Min Oh ◽  
Young Kyu Jeong ◽  
...  
Keyword(s):  
Chemical Bath Deposition ◽  
Single Phase ◽  
Metal Organic Frameworks ◽  
Templated Synthesis ◽  
Pore Structures ◽  
Phase Pure ◽  
Metal Organic ◽  
Cbd Method

We successfully demonstrate that the chemical bath deposition (CBD) method is a versatile method for synthesizing phase-pure and uniform MOFs by controlling their nucleation stages and pore structures.

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