Zeolitic polyoxometalates metal organic frameworks (Z-POMOF) with imidazole ligands and ε-Keggin ions as building blocks; computational evaluation of hypothetical polymorphs and a synthesis approach

2010 ◽  
Vol 12 (30) ◽  
pp. 8632 ◽  
Author(s):  
L. Marleny Rodriguez Albelo ◽  
A. Rabdel Ruiz-Salvador ◽  
Dewi W. Lewis ◽  
Ariel Gómez ◽  
Pierre Mialane ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Computational Evaluation ◽  
Keggin Ions ◽  
Metal Organic ◽  
Synthesis Approach ◽  
Imidazole Ligands

Four metal–organic frameworks built from distinct secondary building blocks: Syntheses, structures, photoluminescence and photocatalytical properties

Polyhedron ◽  
2014 ◽  
Vol 70 ◽  
pp. 180-187 ◽  
Author(s):  
Peng Du ◽  
Yan Yang ◽  
Ying-Ying Liu ◽  
Yuan-Chun He ◽  
Hong-Mei Zhang ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Metal Organic

A Molecular Artisans Guide to Supramolecular Coordination Complexes and Metal Organic Frameworks

2015 ◽  
Vol 03 (01n02) ◽  
pp. 1540004 ◽  
Author(s):  
Xialu Wu ◽  
David J. Young ◽  
T. S. Andy Hor
Keyword(s):  
Chemical Reactivity ◽  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Coordination Complexes ◽  
Large Molecules ◽  
Molecular Building Blocks ◽  
Supramolecular Coordination ◽  
Metal Organic ◽  
Molecular Synthesis ◽  
And Function

As molecular synthesis advances, we are beginning to learn control of not only the chemical reactivity (and function) of molecules, but also of their interactions with other molecules. It is this basic idea that has led to the current explosion of supramolecular science and engineering. Parallel to this development, chemists have been actively pursuing the design of very large molecules using basic molecular building blocks. Herein, we review the general development of supramolecular chemistry and particularly of two new branches: supramolecular coordination complexes (SCCs) and metal organic frameworks (MOFs). These two fields are discussed in detail with typical examples to illustrate what is now possible and what challenges lie ahead for tomorrow's molecular artisans.

Supermolecular Building Blocks (SBBs) for the Design and Synthesis of Highly Porous Metal-Organic Frameworks

2008 ◽  
Vol 130 (6) ◽  
pp. 1833-1835 ◽  
Author(s):  
Farid Nouar ◽  
Jarrod F. Eubank ◽  
Till Bousquet ◽  
Lukasz Wojtas ◽  
Michael J. Zaworotko ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Building Blocks ◽  
Design And Synthesis ◽  
Metal Organic ◽  
Highly Porous

scholarly journals In situ X-ray Diffraction Investigation of the Crystallisation of Perfluorinated Ce(IV)-based Metal-Organic Frameworks with UiO-66 and MIL-140 architectures

2020 ◽  
Author(s):  
Stephen Shearan ◽  
Jannick Jacobsen ◽  
Ferdinando Costantino ◽  
Roberto D’Amato ◽  
Dmitri Novikov ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Nucleation And Growth ◽  
X Ray Diffraction ◽  
X Ray ◽  
Rate Determining Step ◽  
Wide Range ◽  
Metal Organic

We report on the results of a thorough <i>in situ</i> synchrotron powder X-ray diffraction study of the crystallisation in aqueous medium of two recently discovered perfluorinated Ce(IV)-based metal-organic frameworks (MOFs), analogues of the already well investigated Zr(IV)-based UiO-66 and MIL-140A, namely, F4_UiO-66(Ce) and F4_MIL-140A(Ce). The two MOFs were originally obtained in pure form in similar conditions, using ammonium cerium nitrate and tetrafluoroterephthalic acid as building blocks, and small variations of the reaction parameters were found to yield mixed phases. Here, we investigate the crystallisation of these compounds <i>in situ</i> in a wide range of conditions, varying parameters such as temperature, amount of the protonation modulator nitric acid (HNO<sub>3</sub>) and amount of the coordination modulator acetic acid (AcOH). When only HNO<sub>3</sub> is present in the reaction environment, F4_MIL-140A(Ce) is obtained as a pure phase. Heating preferentially accelerates nucleation, which becomes rate determining below 57 °C, whereas the modulator influences nucleation and crystal growth to a similar extent. Upon addition of AcOH to the system, alongside HNO<sub>3</sub>, mixed-phased products, consisting of F4_MIL-140A(Ce) and F4_UiO-66(Ce), are obtained. In these conditions, F4_UiO-66(Ce) is always formed faster and no interconversion between the two phases occurs. In the case of F4_UiO-66(Ce), crystal growth is always the rate determining step. An increase in the amount of HNO<sub>3</sub> slows down both nucleation and growth rates for F4_MIL-140A(Ce), whereas nucleation is mainly affected for F4_UiO-66(Ce). In addition, a higher amount HNO<sub>3</sub> favours the formation of F4_MIL-140A(Ce). Similarly, increasing the amount of AcOH leads to slowing down of the nucleation and growth rate, but favours the formation of F4_UiO-66(Ce). The pure F4_UiO-66(Ce) phase could also be obtained when using larger amounts of AcOH in the presence of minimal HNO<sub>3</sub>. Based on these <i>in situ</i> results, a new optimised route to achieving a pure, high quality F4_MIL-140A(Ce) phase in mild conditions (60 °C, 1 h) is also identified.

Novel Metal-Organic Frameworks Incorporating [Cp°2Mo2P4S] (Cp° = 1-tBu-3,4-Me2C5H2), P4S3 and Cu2I2 Building Blocks (Eur. J. Inorg. Chem. 6/2011)

2011 ◽  
Vol 2011 (6) ◽  
pp. n/a-n/a
Author(s):  
Christian Gröger ◽  
Hans Robert Kalbitzer ◽  
Michael Pronold ◽  
Dmitry Piryazev ◽  
Manfred Scheer ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Metal Organic

3D Metal−Organic Frameworks Based on Elongated Tetracarboxylate Building Blocks for Hydrogen Storage

2008 ◽  
Vol 47 (10) ◽  
pp. 3955-3957 ◽  
Author(s):  
Liqing Ma ◽  
Jeong Yong Lee ◽  
Jing Li ◽  
Wenbin Lin
Keyword(s):  
Hydrogen Storage ◽  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Metal Organic

Reticular Chemistry and Metal-Organic Frameworks for Clean Energy

MRS Bulletin ◽  
2009 ◽  
Vol 34 (9) ◽  
pp. 682-690 ◽  
Author(s):  
Omar M. Yaghi ◽  
Qiaowei Li
Keyword(s):  
Carbon Dioxide ◽  
Metal Organic Frameworks ◽  
Clean Energy ◽  
Building Blocks ◽  
Zeolitic Imidazolate Frameworks ◽  
Design Concepts ◽  
Surface Areas ◽  
Molecular Building Blocks ◽  
Metal Organic ◽  
Molecular Aspects

AbstractReticular chemistry concerns the linking of molecular building blocks into predetermined structures using strong bonds. We have been working on creating and developing the conceptual and practical basis of this new area of research. As a result, new classes of crystalline porous materials have been designed and synthesized: metal-organic frameworks, zeolitic imidazolate frameworks, and covalent organic frameworks. Crystals of this type have exceptional surface areas (2,000−6,000 m2/g) and take up voluminous amounts of hydrogen (7.5 wt% at 77 K and 3−4 × 106 Pa), methane (50 wt% at 298 K and 2.5 × 106 Pa), and carbon dioxide (140 wt% at 298 K and 3 × 106 Pa). We have driven the basic science all the way to applications without losing sight of our quest for understanding the underlying molecular aspects of this chemistry. The presentation was focused on the design concepts, synthesis, and structure of these materials, with emphasis on their applications to onboard energy storage.

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