Gas-Phase Model Studies Relevant to the Decomposition of Transition-Metal Nitrates M(NO3)2 (M = Co, Ni) into Metal-Oxo Species

2009 ◽  
Vol 2009 (14) ◽  
pp. 2121-2128 ◽  
Author(s):  
Detlef Schröder ◽  
Krijn P. de Jong ◽  
Jana Roithová
Keyword(s):  
Transition Metal ◽  
Gas Phase ◽  
Phase Model ◽  
Model Studies ◽  
Metal Nitrates

Structure and Reactivity of Al−O(H)−Al Moieties in Siloxide Frameworks: Solution and Gas-Phase Model Studies

2018 ◽  
Vol 58 (3) ◽  
pp. 902-906 ◽  
Author(s):  
Kapil Shyam Lokare ◽  
Beatrice Braun-Cula ◽  
Christian Limberg ◽  
Marcel Jorewitz ◽  
John T. Kelly ◽  
...  
Keyword(s):  
Gas Phase ◽  
Phase Model ◽  
Model Studies

The effect of partial exchange of sulphonated macroporous styrene-divinylbenzene copolymers for different ions on their catalytic activity

1981 ◽  
Vol 46 (10) ◽  
pp. 2354-2363 ◽  
Author(s):  
Svatomír Kmošták ◽  
Karel Setínek
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Metal Ions ◽  
Gas Phase ◽  
Transition Metal Ions ◽  
Exchange Capacity ◽  
Total Exchange Capacity ◽  
Styrene Divinylbenzene ◽  
Na Ions ◽  
Type Of Transition

The catalytic activity of sulphonated macroporous styrene-divinylbenzene copolymers, the exchange capacity of which was neutralized from 30, 50 and 80% by Fe(III) ions and from 30% by Na ions and that of Wofatit Y-37 ion exchanger neutralized from 10% of its total exchange capacity by several transition metal ions and by sodium has been studied in isomerisation of cyclohexene and dehydration of 1-propanol in the gas phase at 130 °C. It was demonstrated that in both reactions transition metal ions exhibit additional effect to the expected neutralization of the polymer acid groups. In the case of cyclohexene isomerization, this effect depends on the degree of crosslinking of polymer mass of the catalyst. Such dependence has not been, however, observed in dehydration of 1-propanol. The type of transition metal ions did not exhibit any significant effect on the catalytic activity of the polymer catalysts studied.

scholarly journals Ethylammonium nitrate enhances the extraction of transition metal nitrates by tri‐ n ‐butyl phosphate ( TBP )

AIChE Journal ◽  
2021 ◽  
Author(s):  
Zheng Li ◽  
Zidan Zhang ◽  
Bieke Onghena ◽  
Xiaohua Li ◽  
Koen Binnemans
Keyword(s):  
Transition Metal ◽  
Metal Nitrates ◽  
Ethylammonium Nitrate

Photodecomposition of gas-phase transition metal carbonyl anions

1974 ◽  
Vol 96 (12) ◽  
pp. 3816-3820 ◽  
Author(s):  
Robert C. Dunbar ◽  
Bennett B. Hutchinson
Keyword(s):  
Phase Transition ◽  
Transition Metal ◽  
Gas Phase ◽  
Metal Carbonyl

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’.

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