scholarly journals Millimeter-Scale Zn(3-ptz)2 Metal–Organic Framework Single Crystals: Self-Assembly Mechanism and Growth Kinetics

ACS Omega ◽  
2021 ◽  
Author(s):  
Juan M. Garcia-Garfido ◽  
Javier Enríquez ◽  
Ignacio Chi-Durán ◽  
Iván Jara ◽  
Leonardo Vivas ◽  
...  
Keyword(s):  
Single Crystals ◽  
Growth Kinetics ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Assembly Mechanism ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Millimeter-Sized Metal-Organic Framework Single Crystals without Inversion Symmetry: Controlled Growth and Self-Assembly Mechanism

2020 ◽  
Author(s):  
Juan Manuel Garcia Garfido ◽  
javier enriquez ◽  
Ignacio Chi-Duran ◽  
Ivam Jara ◽  
Leonardo Vivas ◽  
...  
Keyword(s):  
Single Crystals ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Nucleation And Growth ◽  
Crystal Nucleation ◽  
Ex Situ ◽  
External Control ◽  
Controlled Growth ◽  
Metal Organic ◽  
Organic Framework

The controllable growth of non-centrosymmetric metal organic framework (MOF) beyond the conventional micrometer crystal dimensions would represent an enabling step in the development of MOF-based devices for coherent nonlinear optics. This goal has been elusive so far, as MOF crystal typical self-assemble under metastable synthesis conditions that have several competing crystallization pathways open, and only a modest amount of external control over the crystal nucleation and growth rates is currently possible. We overcome some of these issues and achieve the controlled growth of large single crystals of the non-centrosymmetric MOF Zn(3-ptz)<sub>2</sub>, with surface areas of up to 25 mm<sup>2</sup> in 24 hours, in a single solvothermal reaction with <i>in-situ</i> ligand formation. No additional growth steps are necessary. We carry out a mechanistic study to unravel the reaction steps leading to the self-assembly of Zn(3-ptz)<sub>2</sub> crystals, by identifying and isolating several intermediate crystal structures that directly connect with the target MOF, and reversibly interconverting between them. We identify the synthesis parameters that control the size and morphology of our target MOF crystal and model its nucleation and growth kinetics using <i>ex-situ</i> image processing data. Our work is a step forward is understanding and controlling the factors that stabilize the growth of high-quality MOF crystals with sizes that are relevant for coherent optics, thus untapping possible applications of metal-organic frameworks in classical and quantum communication technology.

scholarly journals Millimeter-Sized Metal-Organic Framework Single Crystals without Inversion Symmetry: Controlled Growth and Self-Assembly Mechanism

2020 ◽  
Author(s):  
Juan Manuel Garcia Garfido ◽  
javier enriquez ◽  
Ignacio Chi-Duran ◽  
Ivam Jara ◽  
Leonardo Vivas ◽  
...  
Keyword(s):  
Single Crystals ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Nucleation And Growth ◽  
Crystal Nucleation ◽  
Ex Situ ◽  
External Control ◽  
Controlled Growth ◽  
Metal Organic ◽  
Organic Framework

The controllable growth of non-centrosymmetric metal organic framework (MOF) beyond the conventional micrometer crystal dimensions would represent an enabling step in the development of MOF-based devices for coherent nonlinear optics. This goal has been elusive so far, as MOF crystal typical self-assemble under metastable synthesis conditions that have several competing crystallization pathways open, and only a modest amount of external control over the crystal nucleation and growth rates is currently possible. We overcome some of these issues and achieve the controlled growth of large single crystals of the non-centrosymmetric MOF Zn(3-ptz)<sub>2</sub>, with surface areas of up to 25 mm<sup>2</sup> in 24 hours, in a single solvothermal reaction with <i>in-situ</i> ligand formation. No additional growth steps are necessary. We carry out a mechanistic study to unravel the reaction steps leading to the self-assembly of Zn(3-ptz)<sub>2</sub> crystals, by identifying and isolating several intermediate crystal structures that directly connect with the target MOF, and reversibly interconverting between them. We identify the synthesis parameters that control the size and morphology of our target MOF crystal and model its nucleation and growth kinetics using <i>ex-situ</i> image processing data. Our work is a step forward is understanding and controlling the factors that stabilize the growth of high-quality MOF crystals with sizes that are relevant for coherent optics, thus untapping possible applications of metal-organic frameworks in classical and quantum communication technology.

scholarly journals Defect self-assembly of metal-organic framework triggers ferroptosis to overcome resistance

2021 ◽  
Author(s):  
Haibao Peng ◽  
Xingcai Zhang ◽  
Peng Yang ◽  
Jiaxu Zhao ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

Encapsulation of [(SO4)4(H2O)12]8− clusters in a metal organic framework of pyridyl functionalized cyanuric acid based tris-urea

2015 ◽  
Vol 44 (34) ◽  
pp. 15075-15078 ◽  
Author(s):  
Ranjan Dutta ◽  
Bidyut Akhuli ◽  
Pradyut Ghosh
Keyword(s):  
Self Assembly ◽  
Cyanuric Acid ◽  
Metal Organic Framework ◽  
Hydrated Form ◽  
Metal Organic ◽  
Organic Framework

Encapsulation of four sulfates in hydrated form is demonstrated in the coordination driven self-assembly of a tripodal urea receptor.

Magnetic behavior of the metal organic framework [(CH3)2NH2]Co(HCOO)3

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37818-37822 ◽  
Author(s):  
K. Vinod ◽  
C. S. Deepak ◽  
Shilpam Sharma ◽  
D. Sornadurai ◽  
A. T. Satya ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Specific Heat ◽  
Single Crystals ◽  
Metal Organic Framework ◽  
Magnetic Behavior ◽  
Metal Organic ◽  
Organic Framework

In this study we examine the phase transitions in single crystals of [(CH3)2NH2]Co(HCOO)3, using magnetization and specific heat measurements as a function of temperature and magnetic field.

scholarly journals Nanopore-induced host–guest charge transfer phenomena in a metal–organic framework

2018 ◽  
Vol 9 (13) ◽  
pp. 3282-3289 ◽  
Author(s):  
S. Yamamoto ◽  
J. Pirillo ◽  
Y. Hijikata ◽  
Z. Zhang ◽  
K. Awaga
Keyword(s):  
Charge Transfer ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Donor And Acceptor ◽  
Organic Electron ◽  
Donor Acceptor ◽  
Metal Organic ◽  
Bulk Scale ◽  
A Charge ◽  
Organic Framework

Using the “crystal sponge” approach, weak organic electron donor molecules were impregnated and evenly distributed in a crystal of a metal–organic framework (MOF), with the self-assembly of the donor–acceptor pairs with electron acceptor ligands. The nanopores of the MOF confined them and induced a charge transfer phenomenon, which would not occur between donor and acceptor molecules in a bulk scale.

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