Soluble imidazolium-functionalized coordination cages for efficient homogeneous catalysis of CO2 cycloaddition reactions

2021 ◽  
Author(s):  
Hui-Ying Tong ◽  
Jun Liang ◽  
Qiu-Jin Wu ◽  
Yu-Huang Zou ◽  
Yuan-Biao Huang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Homogeneous Catalysis ◽  
Cycloaddition Reaction ◽  
Homogeneous Catalyst ◽  
Cycloaddition Reactions ◽  
Coordination Cages ◽  
Metal Organic ◽  
Activity Loss ◽  
Recovery And Reuse

The soluble metal–organic cage ImBDC-Co can be employed as a homogeneous catalyst for the CO2 cycloaddition reaction, and shows higher catalytic activity than its heterogeneous counterparts. Moreover, the soluble cage can realize recovery and reuse without activity loss.

Inverse relationship of dimensionality and catalytic activity in CO2transformation: a systematic investigation by comparing multidimensional metal–organic frameworks

2017 ◽  
Vol 5 (30) ◽  
pp. 15961-15969 ◽  
Author(s):  
Robin Babu ◽  
Roshith Roshan ◽  
Yeongrok Gim ◽  
Yun Hee Jang ◽  
Jintu Francis Kurisingal ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Inverse Relationship ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Systematic Investigation ◽  
Cycloaddition Reactions ◽  
Metal Organic ◽  
Relationship Of

The correlation between dimensionality and active sites on deciding the catalytic performance of an MOF catalyst in CO2–epoxide cycloaddition reactions has been studied.

A nona-vacant Keggin-type tricarbonyl rhenium derivative {[PMo3O16][Re(CO)3]4}5− and its catalytic performance for CO2 cycloaddition reactions

RSC Advances ◽  
2015 ◽  
Vol 5 (84) ◽  
pp. 69006-69009 ◽  
Author(s):  
Zhiyuan Huo ◽  
Jipeng Guo ◽  
Jingkun Lu ◽  
Qiaofei Xu ◽  
Pengtao Ma ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Cycloaddition Reaction ◽  
Catalytic Performance ◽  
Cycloaddition Reactions ◽  
Frontier Orbitals ◽  
Keggin Type ◽  
Good Catalytic Activity

A nona-vacant Keggin-type tricarbonyl rhenium derivative {[PMo3O16][Re(CO)3]4}5− was synthesized and its frontier orbitals were computed. Interestingly, it showed good catalytic activity for the CO2 cycloaddition reaction.

Tailoring the catalytic activity of metal organic frameworks by tuning the metal center and basic functional sites

2017 ◽  
Vol 41 (16) ◽  
pp. 8166-8177 ◽  
Author(s):  
Poonam Rani ◽  
Rajendra Srivastava
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Frameworks ◽  
Metal Center ◽  
Cycloaddition Reactions ◽  
Functional Sites ◽  
Amine Functionalized ◽  
Metal Organic ◽  
Acidity And Basicity

Optimum acidity and basicity of amine functionalized metal organic frameworks are important for condensation and cycloaddition reactions.

A Highly Stable Zn9-Pyrazolate Metal-Organic Framework with Metallosalen Ligands as Carbon Dioxide Cycloaddition Catalyst

2022 ◽  
Author(s):  
Rong Cao ◽  
Fa-Xue Ma ◽  
Fu-Qi Mi ◽  
Meng-Jiao Sun ◽  
Tao Huang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Activity ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
High Catalytic Activity ◽  
Cycloaddition Reactions ◽  
Metal Organic ◽  
Organic Framework

A three-dimensional (3D) metal-organic framework constructed from unprecedented Zn9O2(OH)2(pyz)12 (pyz = pyrazolate) clusters and Ni(salen)-derived linkers was reported. The MOF exhibits high catalytic activity for CO2 cycloaddition reactions with excellent...

scholarly journals Kinetic Probes of the Origin of Activity in MOF-Based C–H Oxidation Catalysts

2021 ◽  
Author(s):  
Aishanee Sur ◽  
Nicholas Jernigan ◽  
David Powers
Keyword(s):  
Catalytic Activity ◽  
Homogeneous Catalysis ◽  
Heterogeneous Catalysts ◽  
Isotope Effects ◽  
Catalyst Activity ◽  
Oxidation Reactions ◽  
Limiting Step ◽  
Metal Organic ◽  
Bona Fide ◽  
Oxidation Chemistry

The development of homogeneous catalysis is enabled by the availability of a rich toolkit of kinetics experiments, such as the Hg-drop test, that differentiate catalytic activity at ligand-supported metal complexes from potential heterogeneous catalysts derived from decomposition of molecular species. Metal-organic frameworks (MOFs) have garnered significant attention as platforms for catalysis at site-isolated, interstitial catalyst sights. Unlike homogeneous catalysis, relatively few strategies have been advanced to evaluate the origin of catalytic activity in MOF-promoted reactions. Many of the MOFs that have been examined as potential catalysts are comprised of molecular constituents that represent viable catalysts in the absence of the extended MOF lattice, and thus interfacial sites and leached homogeneous species represent potential sources of catalyst activity. Here, we demonstrate that analysis of deuterium kinetic isotope effects (KIEs) and olefin epoxidation diastereoselectivity provides direct probes of the origin of catalytic activity in MOF-promoted oxidation reactions. These analyses support direct involvement of lattice-based Fe sites in the turnover-limiting step of C–H activation with Fe-MOF-74-based materials (i.e., the MOF functions as a bona fide catalyst) and evidence that Cu2-based MOF MIL-125-Cu2O2 functions as a solid-state initiator for solution-phase oxidation chemistry and is not involved in the turnover limiting step (i.e., the MOF does not function as a catalyst). We anticipate that the simple experiments described here will provide a valuable tool for clarifying the role of MOFs in C–H oxidation reactions.

scholarly journals Synthesis of tetrazolo[1,5-a]pyrimidine-6-carbonitriles using HMTA-BAIL@MIL-101(Cr) as a superior heterogeneous catalyst

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Hossein Abdollahi-Basir ◽  
Boshra Mirhosseini-Eshkevari ◽  
Farzad Zamani ◽  
Mohammad Ali Ghasemzadeh
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Reaction Time ◽  
Metal Organic Framework ◽  
One Pot ◽  
Short Reaction Time ◽  
Three Component Reaction ◽  
Metal Organic ◽  
Ft Ir ◽  
Novel Catalyst

AbstractA one-pot three component reaction of benzaldehydes, 1H-tetrazole-5-amine, and 3-cyanoacetyl indole in the presence of a new hexamethylenetetramine-based ionic liquid/MIL-101(Cr) metal–organic framework as a recyclable catalyst was explored. This novel catalyst, which was fully characterized by XRD, FE-SEM, EDX, FT-IR, TGA, BET, and TEM exhibited outstanding catalytic activity for the preparation of a range of pharmaceutically important tetrazolo[1,5-a]pyrimidine-6-carbonitriles with good to excellent yields in short reaction time.

scholarly journals Recyclable Catalysts for Alkyne Functionalization

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3525
Author(s):  
Leslie Trigoura ◽  
Yalan Xing ◽  
Bhanu P. S. Chauhan
Keyword(s):  
Supported Catalysts ◽  
Metal Organic Framework ◽  
Metal Nanoparticle ◽  
Homogeneous Catalyst ◽  
Catalyst Recycling ◽  
Catalytic Systems ◽  
Recyclable Catalysts ◽  
Metal Organic ◽  
Porous Organic Framework ◽  
Organic Framework

In this review, we present an assessment of recent advances in alkyne functionalization reactions, classified according to different classes of recyclable catalysts. In this work, we have incorporated and reviewed the activity and selectivity of recyclable catalytic systems such as polysiloxane-encapsulated novel metal nanoparticle-based catalysts, silica–copper-supported nanocatalysts, graphitic carbon-supported nanocatalysts, metal organic framework (MOF) catalysts, porous organic framework (POP) catalysts, bio-material-supported catalysts, and metal/solvent free recyclable catalysts. In addition, several alkyne functionalization reactions have been elucidated to demonstrate the success and efficiency of recyclable catalysts. In addition, this review also provides the fundamental knowledge required for utilization of green catalysts, which can combine the advantageous features of both homogeneous (catalyst modulation) and heterogeneous (catalyst recycling) catalysis.

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