Solventless Oxidative Coupling of Amines to Imines by Using Transition-Metal-Free Metal-Organic Frameworks

ChemSusChem ◽  
2014 ◽  
Vol 7 (6) ◽  
pp. 1684-1688 ◽  
Author(s):  
Xuan Qiu ◽  
Christophe Len ◽  
Rafael Luque ◽  
Yingwei Li
Keyword(s):  
Transition Metal ◽  
Oxidative Coupling ◽  
Metal Organic Frameworks ◽  
Metal Free ◽  
Metal Organic ◽  
Free Metal

Nanoporous carbons derived from MOFs as metal-free catalysts for selective aerobic oxidations

2016 ◽  
Vol 4 (14) ◽  
pp. 5247-5257 ◽  
Author(s):  
Xi Wang ◽  
Yingwei Li
Keyword(s):  
Liquid Phase ◽  
Oxidative Coupling ◽  
Metal Organic Frameworks ◽  
Liquid Phase Oxidation ◽  
Oxidation Reactions ◽  
Nanoporous Carbons ◽  
Metal Free ◽  
Phase Oxidation ◽  
Metal Organic

A new kind of metal-free catalyst comprised of highly graphitized N-doped nanoporous carbons from direct carbonization of metal–organic frameworks (MOFs) turns out to be an excellent metal-free catalyst for a series of liquid-phase oxidation reactions including aerobic oxidations of cyclohexane and toluene as well as oxidative coupling of amines.

scholarly journals X-ray crystallographic insights into post-synthetic metalation products in a metal–organic framework

2017 ◽  
Vol 375 (2084) ◽  
pp. 20160028 ◽  
Author(s):  
Michael T. Huxley ◽  
Campbell J. Coghlan ◽  
Witold M. Bloch ◽  
Alexandre Burgun ◽  
Christian J. Doonan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Coordination Sphere ◽  
Metal Organic Frameworks ◽  
Void Space ◽  
X Ray ◽  
X Ray Crystallography ◽  
Metal Nitrates ◽  
Metal Organic

Post-synthetic modification of metal–organic frameworks (MOFs) facilitates a strategic transformation of potentially inert frameworks into functionalized materials, tailoring them for specific applications. In particular, the post-synthetic incorporation of transition-metal complexes within MOFs, a process known as ‘metalation’, is a particularly promising avenue towards functionalizing MOFs. Herein, we describe the post-synthetic metalation of a microporous MOF with various transition-metal nitrates. The parent framework, 1 , contains free-nitrogen donor chelation sites, which readily coordinate metal complexes in a single-crystal to single-crystal transformation which, remarkably, can be readily monitored by X-ray crystallography. The presence of an open void surrounding the chelation site in 1 prompted us to investigate the effect of the MOF pore environment on included metal complexes, particularly examining whether void space would induce changes in the coordination sphere of chelated complexes reminiscent of those found in the solution state. To test this hypothesis, we systematically metalated 1 with first-row transition-metal nitrates and elucidated the coordination environment of the respective transition-metal complexes using X-ray crystallography. Comparison of the coordination sphere parameters of coordinated transition-metal complexes in 1 against equivalent solid- and solution-state species suggests that the void space in 1 does not markedly influence the coordination sphere of chelated species but we show notably different post-synthetic metalation outcomes when different solvents are used. This article is part of the themed issue ‘Coordination polymers and metal–organic frameworks: materials by design’.

Resin-assisted solvothermal synthesis of transition metal–organic frameworks

2010 ◽  
Vol 39 (14) ◽  
pp. 3384 ◽  
Author(s):  
Yi Du ◽  
Amber L. Thompson ◽  
Nicola Russell ◽  
Dermot O'Hare
Keyword(s):  
Transition Metal ◽  
Solvothermal Synthesis ◽  
Metal Organic Frameworks ◽  
Metal Organic

Metal organic frameworks as a catalyst for oxygen reduction: an unexpected outcome of a highly active Mn-MOF-based catalyst incorporated in activated carbon

Nanoscale ◽  
2018 ◽  
Vol 10 (20) ◽  
pp. 9634-9641 ◽  
Author(s):  
S. Gonen ◽  
O. Lori ◽  
G. Cohen-Taguri ◽  
L. Elbaz
Keyword(s):  
Activated Carbon ◽  
Transition Metal ◽  
Oxygen Reduction ◽  
Metal Ion ◽  
Metal Organic Frameworks ◽  
Highly Active ◽  
Metal Organic ◽  
Orr Activity ◽  
Unexpected Outcome

Four first row transition metal-based metal–organic-frameworks were synthesized in activated carbon, showing high electrocatalytic ORR activity with surprising metal-ion dependence.

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