scholarly journals Sponge-Like Water De-/Ad-Sorption versus Solid-State Structural Transformation and Colour-Changing Behavior of an Entangled 3D Composite Supramolecuar Architecture, [Ni4(dpe)4(btc)2(Hbtc)(H2O)9]·3H2O

Polymers ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1014 ◽  
Author(s):  
Chih-Chieh Wang ◽  
Szu-Yu Ke ◽  
Kuan-Ting Chen ◽  
Ning-Kuei Sun ◽  
Wei-Fang Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Structural Transformation ◽  
Sorption Property ◽  
Three Dimensional ◽  
Sorption Isotherms ◽  
Antiferromagnetic Coupling ◽  
Polymeric Chains ◽  
Metal Organic ◽  
Crystal Structural ◽  
3D Composite

An entangled composite compound, [Ni4(dpe)4(btc)2(Hbtc)(H2O)9]·3H2O (1), where H3btc = 1,3,5-benzenetricarboxylic acid and dpe = 1,2-bis(4-pyridyl)ethane, has been synthesized and structurally characterized. Single-crystal structural determination reveals that compound 1 consists of four coordination polymers (CPs), with two two-dimensional (2D) (4,4) layered metal-organic frameworks (MOFs) of [Ni(dpe)(Hbtc)(H2O)] and [Ni(dpe)(btc)(H2O)]− anion, and two one-dimensional (1D) polymeric chains of [Ni(dpe)(btc)(H2O)3]− anion and [Ni(dpe)(H2O)4]2+ cation, respectively. The three-dimensional (3D) supramolecular architecture of 1 is constructed via the inter-penetration of inter-digited, double-layered, 2D rectangle-grid MOFs by two 1D coordination polymeric chains, and tightly entangled together via the combination of inter-CPs π–π stacking and hydrogen bonding interactions. The ad-/de-sorption isotherms of 1 for water displays a hysteresis profile with a maximum adsorption of 17.66 water molecules of per molecule unit at relative P/P0 < 0.89. The reversible de-/re-hydration processes in 1 monitored by cyclic water de-/ad-sorption TG analysis and PXRD measurements evidence a sponge-like water de-/ad-sorption property associated with a thermal-induced solid-state structural transformation. The magnetic property of 1 suggests that the ferromagnetic coupling might refer to a stronger inter-Ni(II) interaction, which could be along the btc3− or Hbtc2− ligands; the antiferromagnetic coupling corresponding to the weaker inter-Ni(II) interactions, which could be the dpe ligands for the 2D framework.

Li-based MOF-derived multifunctional PEO polymer solid-state electrolyte for lithium energy storage

2022 ◽  
Author(s):  
Xiang Han ◽  
Tiantian Wu ◽  
Lanhui Gu ◽  
Dian Tian
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Isophthalic Acid ◽  
Solid State Electrolyte ◽  
Metal Organic ◽  
Solvothermal Conditions ◽  
Organic Framework

A three-dimensional (3D) metal-organic framework containing Li-oxygen clusters, namely {[Li2(IPA)]·DMF}n (1) (H2IPA = isophthalic acid), has been constructed under solvothermal conditions. The Li-based MOF can be applied to lithium energy...

Thermally Triggered Solid-State Single-Crystal-to-Single-Crystal Structural Transformation Accompanies Property Changes

2015 ◽  
Vol 21 (12) ◽  
pp. 4703-4711 ◽  
Author(s):  
Quan-Quan Li ◽  
Chun-Yan Ren ◽  
Yang-Yang Huang ◽  
Jian-Li Li ◽  
Ping Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Structural Transformation ◽  
Crystal Structural ◽  
Property Changes ◽  
Thermally Triggered

A reversible photochemical solid-state transformation in an interpenetrated 3D metal–organic framework with mechanical softness

2019 ◽  
Vol 55 (83) ◽  
pp. 12515-12518 ◽  
Author(s):  
Goutam Pahari ◽  
Biswajit Bhattacharya ◽  
C. Malla Reddy ◽  
Debajyoti Ghoshal
Keyword(s):  
Solid State ◽  
Structural Transformation ◽  
Metal Organic Framework ◽  
Cycloaddition Reaction ◽  
State Transformation ◽  
Solid State Transformation ◽  
Metal Organic ◽  
Organic Framework

A reversible solid state structural transformation via a topochemical [2+2] cycloaddition reaction of a MOF has been correlated with the mechanical softness of the corresponding crystals of the MOFs.

Solid-state thermal conversion of a nanoporous metal–organic framework to a nonporous coordination polymer

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 50778-50782 ◽  
Author(s):  
Fatemeh Shahangi Shirazi ◽  
Kamran Akhbari
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Coordination Polymer ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Thermal Conversion ◽  
Grid Network ◽  
Nanoporous Metal ◽  
Metal Organic ◽  
Organic Framework

A nanoporous metal–organic framework with pillared 2D square-grid network, converts to a nonporous three-dimensional coordination polymer of upon thermal treatment at 350 °C.

A two-dimensional layered CdIIcoordination polymer with a three-dimensional supramolecular architecture incorporating mixed multidentateN- andO-donor ligands

2015 ◽  
Vol 71 (6) ◽  
pp. 474-478 ◽  
Author(s):  
Qiu-Ying Huang ◽  
Ming-Yang Su ◽  
Xiang-Ru Meng
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Three Dimensional ◽  
Fluorescence Emission ◽  
Good Choice ◽  
Donor Ligands ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Carboxylate Groups ◽  
Metal Organic

The combination of N-heterocyclic and multicarboxylate ligands is a good choice for the construction of metal–organic frameworks. In the title coordination polymer, poly[bis{μ2-1-[(1H-benzimidazol-2-yl)methyl]-1H-tetrazole-κ2N3:N4}(μ4-butanedioato-κ4O1:O1′:O4:O4′)(μ2-butanedioato-κ2O1:O4)dicadmium], [Cd(C4H4O4)(C9H8N6)]n, each CdIIion exhibits an irregular octahedral CdO4N2coordination geometry and is coordinated by four O atoms from three carboxylate groups of three succinate (butanedioate) ligands and two N atoms from two 1-[(1H-benzimidazol-2-yl)methyl]-1H-tetrazole (bimt) ligands. CdIIions are connected by two kinds of crystallographically independent succinate ligands to generate a two-dimensional layered structure with bimt ligands located on each side of the layer. Adjacent layers are further connected by hydrogen bonding, leading to a three-dimensional supramolecular architecture in the solid state. Thermogravimetric analysis of the title polymer shows that it is stable up to 529 K and then loses weight from 529 to 918 K, corresponding to the decomposition of the bimt ligands and succinate groups. The polymer exhibits a strong fluorescence emission in the solid state at room temperature.

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