Homochiral, helical metal–organic framework structures organized by strong, non-covalent π–π stacking interactions

2009 ◽  
pp. 6219 ◽  
Author(s):  
Daniel L. Reger ◽  
Jacob Horger ◽  
Mark D. Smith ◽  
Gary J. Long
Keyword(s):  
Metal Organic Framework ◽  
Stacking Interactions ◽  
Π Stacking ◽  
Metal Organic ◽  
Organic Framework

scholarly journals A Nanoporous Supramolecular Metal–Organic Framework Based on a Nucleotide: Interplay of the π···π Interactions Directing Assembly and Geometric Matching of Aromatic Tails

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4594
Author(s):  
Rosaria Bruno ◽  
Teresa Mastropietro ◽  
Giovanni De Munno ◽  
Donatella Armentano
Keyword(s):  
Self Assembly ◽  
Active Sites ◽  
Metal Organic Framework ◽  
Building Blocks ◽  
The Self ◽  
Stacking Interactions ◽  
Π Stacking ◽  
Geometric Matching ◽  
Metal Organic ◽  
Organic Framework

Self-assembly is the most powerful force for creating ordered supramolecular architectures from simple components under mild conditions. π···π stacking interactions have been widely explored in modern supramolecular chemistry as an attractive reversible noncovalent tool for the nondestructive fabrication of materials for different applications. Here, we report on the self-assembly of cytidine 5’-monophosphate (CMP) nucleotide and copper metal ions for the preparation of a rare nanoporous supramolecular metal-organic framework in water. π···π stacking interactions involving the aromatic groups of the ancillary 2,2’-bipyridine (bipy) ligands drive the self-assemblies of hexameric pseudo-amphiphilic [Cu6(bipy)6(CMP)2(µ-O)Br4]2+ units. Owing to the supramolecular geometric matching between the aromatic tails, a nanoporous crystalline phase with hydrophobic and hydrophilic chiral pores of 1.2 and 0.8 nanometers, respectively, was successfully synthesized. The encoded chiral information, contained on the enantiopure building blocks, is transferred to the final supramolecular structure, assembled in the very unusual topology 8T6. These kinds of materials, owing to chiral channels with chiral active sites from ribose moieties, where the enantioselective recognition can occur, are, in principle, good candidates to carry out efficient separation of enantiomers, better than traditional inorganic and organic porous materials.

Roles of hydrogen bonds and π–π stacking in the optical detection of nitro-explosives with a luminescent metal–organic framework as the sensor

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 3045-3053 ◽  
Author(s):  
Lei Liu ◽  
Juanyuan Hao ◽  
Yantao Shi ◽  
Jieshan Qiu ◽  
Ce Hao
Keyword(s):  
Hydrogen Bonds ◽  
Metal Organic Framework ◽  
Optical Detection ◽  
Π Stacking ◽  
Nitro Explosives ◽  
Metal Organic ◽  
Organic Framework

The nitro explosive detecting mechanism of a luminescent MOF sensor is revealed from the viewpoint of analyte–sensor interactions.

Hexanuclear Zn(II)-Induced Dense π-Stacking in a Metal–Organic Framework Featuring Long-Lasting Room Temperature Phosphorescence

2020 ◽  
Vol 59 (15) ◽  
pp. 10395-10399 ◽  
Author(s):  
Xiao-Gang Yang ◽  
Zhi-Min Zhai ◽  
Xiao-Min Lu ◽  
Jian-Hua Qin ◽  
Fei-Fei Li ◽  
...  
Keyword(s):  
Room Temperature ◽  
Metal Organic Framework ◽  
Room Temperature Phosphorescence ◽  
Π Stacking ◽  
Metal Organic ◽  
Organic Framework

Constructing a 3D-layered energetic metal–organic framework with the strong stacking interactions of hydrogen-bridged rings: the way to an insensitive high energy complex

CrystEngComm ◽  
2020 ◽  
Vol 22 (33) ◽  
pp. 5436-5446
Author(s):  
Xiang Chen ◽  
Zhaoqi Guo ◽  
Cong Zhang ◽  
Rong Gao ◽  
Jianguo Zhang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
High Energy ◽  
Stacking Interactions ◽  
Energy Complex ◽  
Metal Organic ◽  
Packing Efficiency ◽  
Organic Framework ◽  
The Way

Constructing 3D-layered EMOFs with strong stacking interactions of hydrogen-bridged rings to enhance their packing efficiency and energetic performances.

A highly stable polyoxometalate-based metal–organic framework with π–π stacking for enhancing lithium ion battery performance

2017 ◽  
Vol 5 (18) ◽  
pp. 8477-8483 ◽  
Author(s):  
Qing Huang ◽  
Tao Wei ◽  
Mi Zhang ◽  
Long-Zhang Dong ◽  
A-Man Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Metal Organic Framework ◽  
Lithium Ion ◽  
Π Stacking ◽  
Metal Organic ◽  
Organic Framework

A novel polyoxometalate-based metal–organic framework was synthesized and employed to demonstrate that the intermolecular π–π stacking are beneficial to promote the LIBs performance.

A porous layered metal-organic framework from π–π-stacking of layers based on a Co6 building unit

2012 ◽  
Vol 157 ◽  
pp. 24-32 ◽  
Author(s):  
C.G. Perkins ◽  
J.E. Warren ◽  
A. Fateeva ◽  
K.C. Stylianou ◽  
A. McLennan ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Building Unit ◽  
Π Stacking ◽  
Metal Organic ◽  
Organic Framework

Multifunctional metal–organic framework heterostructures for enhanced cancer therapy

2021 ◽  
Author(s):  
Jintong Liu ◽  
Jing Huang ◽  
Lei Zhang ◽  
Jianping Lei
Keyword(s):  
Cancer Therapy ◽  
General Principle ◽  
Biomedical Applications ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Functional Modulation ◽  
Organic Framework

We review the general principle of the design and functional modulation of nanoscaled MOF heterostructures, and biomedical applications in enhanced therapy.

Magnetic Ordering via Itinerant Ferromagnetism in a Metal-Organic Framework

2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  
Keyword(s):  
Charge Transport ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Itinerant Ferromagnetism ◽  
Organic Solids ◽  
Metal Organic ◽  
Organic Framework

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>

Sign in / Sign up

Export Citation Format

Share Document