Self-Assembly and Anion-Exchange Properties of a Discrete Cage and 3D Coordination Networks Based on Cage Structures

2007 ◽  
Vol 13 (29) ◽  
pp. 8131-8138 ◽  
Author(s):  
Ying Wang ◽  
Peng Cheng ◽  
You Song ◽  
Dai-Zheng Liao ◽  
Shi-Ping Yan
Keyword(s):  
Anion Exchange ◽  
Self Assembly ◽  
Coordination Networks ◽  
Exchange Properties

Anion-dependent self-assembly of copper coordination polymers based on pyrazole-3,5-dicarboxylate and 1,2-di(4-pyridyl)ethylene

2017 ◽  
Vol 46 (14) ◽  
pp. 4806-4815 ◽  
Author(s):  
Fatima Klongdee ◽  
Jaursup Boonmak ◽  
Sujittra Youngme
Keyword(s):  
Anion Exchange ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Coordination Networks ◽  
Copper Coordination

Anion-dependent self-assembly of new ternary copper coordination networks containing pyrazole-3,5-dicarboxylate and 1,2-di(4-pyridyl)ethylene with anion exchange studies.

Structural diversities in Cu(i) and Ag(i) sulfonate coordination polymers and their anion exchange properties

CrystEngComm ◽  
2015 ◽  
Vol 17 (38) ◽  
pp. 7363-7371 ◽  
Author(s):  
Suryabhan Singh ◽  
Rajendran Karthik
Keyword(s):  
Anion Exchange ◽  
Coordination Polymers ◽  
Exchange Properties

Cu(i)/Ag(i) sulfonate CPs have been synthesized and characterized. One of the CPs exhibits a reversible anion exchange for perchlorate and permanganate.

Interconversion between Pd3L2 trigonal prism and Pd6L8 cube via anion exchange: binding affinity of monoatomic vs. polyatomic anions

2021 ◽  
Author(s):  
Haeri Lee ◽  
Jihun Han ◽  
Dongwon Kim ◽  
Ok-Sang Jung
Keyword(s):  
Anion Exchange ◽  
Binding Affinity ◽  
Self Assembly ◽  
Trigonal Prism ◽  
Trigonal Prisms

Systematic interconversion between trigonal prisms [Pd3X6L2] (X- = Cl-, Br-, and I-) and cubic cages [Pd6L8]12+(X-)12 (X- = BF4- with CF3SO3-) via anion exchange was established. Self-assembly of K2PdX4 (X-...

Square-grid coordination networks of (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) in its clathrate with two guest molecules of 1,2-dichlorobenzene: supramolecular isomerism of the porphyrin self-assembly

2009 ◽  
Vol 65 (3) ◽  
pp. m139-m142 ◽  
Author(s):  
Rajesh Koner ◽  
Israel Goldberg
Keyword(s):  
Self Assembly ◽  
Metal Ion ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Coordination Networks ◽  
Guest Molecules ◽  
Square Grid ◽  
Supramolecular Isomerism ◽  
Self Assembled ◽  
Solvent Molecules

The title compound, (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) 1,2-dichlorobenzene disolvate, [Zn(C40H24N8)]·2C6H4Cl2, contains a clathrate-type structure. It is composed of two-dimensional square-grid coordination networks of the self-assembled porphyrin moiety, which are stacked one on top of the other in a parallel manner. The interporphyrin cavities of the overlapping networks combine into channel voids accommodated by the dichlorobenzene solvent. Molecules of the porphyrin complex are located on crystallographic inversion centres. The observed two-dimensional assembly mode of the porphyrin units represents a supramolecular isomer of the unique three-dimensional coordination frameworks of the same porphyrin building block observed earlier. The significance of this study lies in the discovery of an additional supramolecular isomer of the rarely observed structures of metalloporphyrins self-assembled directly into extended coordination polymers without the use of external ligand or metal ion auxiliaries.

scholarly journals Inorganic Nanostructured Anion-Exchange Materials Based on Aluminum Hydroxide

2020 ◽  
Vol 4 (3) ◽  
Keyword(s):  
Anion Exchange ◽  
Aluminum Hydroxide ◽  
Solid Phase ◽  
Structural Motif ◽  
Dynamic Mode ◽  
Isomorphic Substitution ◽  
Ion Exchangers ◽  
Oh Groups ◽  
Wide Range ◽  
Exchange Properties

Inorganic sorbents, in comparison with ordinary organic ion exchangers, have higher selectivity, radiation, thermal, and chemical stability. Inorganic ion exchangers are universal materials exhibiting both cation exchange and anion exchange properties. In this work, using aluminum hydroxide (AHO) as an example, we study the possibility of expanding the range of metal oxyhydrates that can serve as the basis to produce inorganic anion-exchange materials. The properties of aluminum hydroxide largely depend on the method of its production. This phenomenon is associated with a different state of Al3+ ions in aqueous solutions during hydrolysis. Estimation of the size of the primary particles of hydrated alumina gives a value of 19 nm. The most potent effect on the structure and ion-exchange properties of aluminum hydroxide is exerted by the introduction of alloying elements into its composition. Isomorphic substitution of a part of Al(III) ions in the structure of aluminum hydroxide with ions with a higher charge (Ti(IV), Zr(IV), or W(VI)) leads to an increase in the content of exchangeable OH-groups in the resulting material. The synthesized materials are amorphous substances, to study their structure; the method of diffuse X-ray scattering was used. The Gibbsite structural motif is determined, and structural changes occurring under the influence of various factors, and synthesis conditions are analyzed. By optimizing the composition of the material, it is possible to improve its sorption characteristics significantly. AAW-0, AAZ-0, and AAT-0 anion exchangers synthesized based on hydrated aluminum oxide can be used to purify weakly acidic electrolyte solutions from anionic impurities in the dynamic mode of repeated sorptiondesorption cycles. Materials based on mixed hydrated oxides of various elements can also be used as catalyst supports. Their anion exchange properties allow a wide range to vary the number of different anions introduced into the solid phase and, accordingly, to regulate the number and state of active catalytic sites.

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