Computational Modeling of Adsorption of Xe and Kr in M-MOF-74 Metal Organic Frame Works with Different Metal Atoms

2016 ◽  
Vol 120 (20) ◽  
pp. 10968-10974 ◽  
Author(s):  
Tijo Vazhappilly ◽  
Tapan K. Ghanty ◽  
B. N. Jagatap
Keyword(s):  
Computational Modeling ◽  
Metal Atoms ◽  
Metal Organic ◽  
Modeling Of Adsorption

Functionalization of Open Two-Dimensional Metal–Organic Templates through the Selective Incorporation of Metal Atoms

2013 ◽  
Vol 117 (17) ◽  
pp. 8871-8877 ◽  
Author(s):  
Jan Čechal ◽  
Christopher S. Kley ◽  
Takashi Kumagai ◽  
Frank Schramm ◽  
Mario Ruben ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Organic Templates ◽  
Metal Atoms ◽  
Selective Incorporation ◽  
Metal Organic

A bonded metal fulleride structure in the PdnC60 system

1994 ◽  
Vol 52 ◽  
pp. 768-769
Author(s):  
M. Liu ◽  
J. M. Cowley ◽  
B. L. Ramakrishna ◽  
T. S. Peace ◽  
A. K. Wertsching ◽  
...  
Keyword(s):  
Large Scale ◽  
Three Dimensional ◽  
Combination Method ◽  
Metal Atoms ◽  
Organic Complexes ◽  
Chemical Combination ◽  
Metal Organic ◽  
Liquid Chemical ◽  
Diffraction Patterns ◽  
Fcc Structure

The large-scale synthesis of C60 has stimulated considerable interest in the chemistry and structures of metal fullerides. Studies on compounds formed by C60 with metal-organic complexes have shown that some metal atoms can form bonds with the C60 molecules. Nagashima et al. have proposed that one-, two-, or three-dimensional polymers may be formed when Pd atoms link neighboring C60 molecules by being coordinated with the π electrons at the double-bond regions between hexagonal carbon rings. In the present study, PdnC60 (n= 1,3,4) were prepared from C60 and a Pd0 precursor by a liquid chemical combination method. The compositions of these compounds were determined with EELS. Their structures were examined with a Topcon 002B and a JEM-2000FX HRTEM.The electron micrographs and diffraction patterns of the Pd1C60 preparation showed regions of small Pd crystals embedded in near-amorphous carbon and also regions of heavily faulted FCC C60 structures. Fig. 1 is a HRTEM image showing a region of FCC structure viewed in the [110] direction with several groups of stacking faults.

Orthogonal Insertion of Lanthanide and Transition-Metal Atoms in Metal-Organic Networks on Surfaces

2015 ◽  
Vol 54 (21) ◽  
pp. 6163-6167 ◽  
Author(s):  
José I. Urgel ◽  
David Ecija ◽  
Willi Auwärter ◽  
Daphné Stassen ◽  
Davide Bonifazi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Metal Organic ◽  
Organic Networks

scholarly journals Selective coordination with heterogeneous metal atoms for inorganic–organic hybrid layers

RSC Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 830-837
Author(s):  
Seong Jun Kim ◽  
In Su Jeon ◽  
Wooseok Song ◽  
Sung Myung ◽  
Jongsun Lim ◽  
...  
Keyword(s):  
Functional Groups ◽  
Vapor Phase ◽  
Synthesis Process ◽  
Organic Layer ◽  
Organic Hybrid ◽  
Metal Atoms ◽  
Metal Organic ◽  
Organic Nanostructure ◽  
Hybrid Layers

The fabrication of a metal–organic nanostructure was demonstrated by the hybrid synthesis process. The metal atoms such as Sn and Zn were sequentially coordinated on specific functional groups of the main organic layer by vapor phase metalation.

Inspecting the nonbonding and antibonding orbitals in a surface-supported metal–organic framework

2021 ◽  
Author(s):  
Bing Liu ◽  
Shengjie Zhang ◽  
Guangyao Miao ◽  
Jiandong Guo ◽  
Sheng Meng ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Metal Organic Framework ◽  
Energy Separation ◽  
Metal Atoms ◽  
Scanning Tunnelling ◽  
Metal Organic ◽  
Tunnelling Microscopy ◽  
Temperature Scanning ◽  
Organic Framework ◽  
Supported Metal

By using low-temperature scanning tunnelling microscopy, we have revealed the spatial distribution and energy separation of the nonbonding and antibonding orbitals associated with individual metal atoms in a surface-supported metal–organic framework.

scholarly journals Development of Phosphonate Monoesters Building Units in Metal-Organic Frameworks

2014 ◽  
Vol 70 (a1) ◽  
pp. C1127-C1127
Author(s):  
Benjamin Gelfand ◽  
Jian-Bin Lin ◽  
George Shimizu
Keyword(s):  
Metal Organic Frameworks ◽  
Design Strategy ◽  
Layered Material ◽  
Water Stability ◽  
New Materials ◽  
Isopropyl Esters ◽  
Porous Framework ◽  
Metal Atoms ◽  
Metal Organic ◽  
Ester Moiety

The use of predictable coordination geometries and the development of new ligands has allowed supramolecular chemists to design a plethora of new materials. Among these are metal-organic frameworks (MOFs), which are composed of ligands coordinating to metal atoms or clusters to generate a framework with potential porosity. MOFs exemplify supramolecular design strategy as their extended structure and tunable properties allow them to be applied for various applications.1 To date, many MOFs utilize carboxylates as the coordinating group since they have well studied coordination geometries and thus predictable framework topologies. Though there are examples of carboxylate-based MOFs possessing water stability, most do not possess this key feature, hindering their application in industrial settings. Phosphonate monoesters (PMEs) have been investigated as a means to impart water stability to a MOF by kinetically shielding the linker-metal bond with the ester moiety.2 Unfortunately, phosphonate monoesters have relatively unexplored coordination geometries, with most studies focusing on chlodronic acid and its derivatives, which do not typically form porous materials. In an attempt to establish building units based on PMEs, 1,4-benzenediphosphonate monoester ligands have been synthesized, coordinated to Cu(II), and characterized. It was found that while the methyl and ethyl analogues form similar 3-D structures with poor water stability,3 the isopropyl analogue forms a layered material possessing water stability. The isopropyl analogue contains chains of Cu-PME, with the isopropyl esters lying directly above and below the Cu atoms, kinetically shielding this bond from water. This water stable building unit was predicted to generate a porous framework with non-linear ligands. To test this hypothesis, 1,3,5-benzenetriphosphonate monoisopropyl ester was synthesized and coordinated to Cu(II). Unfortunately, no single crystal of sufficient quality has been produced, though a predicted and refined structure matches well to various characterization techniques. As predicted, this material is porous and does not degrade in harsh humid conditions (353K and 90% relative humidity).

Structural Changes and Coordinatively Unsaturated Metal Atoms on Dehydration of Honeycomb Analogous Microporous Metal–Organic Frameworks

2008 ◽  
Vol 14 (8) ◽  
pp. 2389-2397 ◽  
Author(s):  
Pascal D. C. Dietzel ◽  
Rune E. Johnsen ◽  
Richard Blom ◽  
Helmer Fjellvåg
Keyword(s):  
Structural Changes ◽  
Metal Organic Frameworks ◽  
Metal Atoms ◽  
Metal Organic
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