Synthesis, structure and adsorption properties of a three-dimensional 3-fold interpenetrated Cd(II) coordination network with the rare tfz topology

Polyhedron ◽  
2015 ◽  
Vol 96 ◽  
pp. 1-5 ◽  
Author(s):  
Pei-Chi Cheng ◽  
Yang-Chih Lo ◽  
Wayne Hsu ◽  
Kedar Bahadur Thapa ◽  
Shih-Miao Liou ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Adsorption Properties ◽  
Coordination Network

Synthesis, structure, and adsorption properties of a three-dimensional porous yttrium–organic coordination network

2007 ◽  
Vol 98 (1-3) ◽  
pp. 16-20 ◽  
Author(s):  
Jinxi Chen ◽  
Zhenxia Chen ◽  
Ting Yu ◽  
Linhong Weng ◽  
Bo Tu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Adsorption Properties ◽  
Coordination Network

Substituent effects of two isophthalate derivatives on the construction of cadmium coordination polymers incorporating a dipyridyl ligand

2018 ◽  
Vol 74 (8) ◽  
pp. 894-900 ◽  
Author(s):  
Lin Wang ◽  
Qian-Kun Zhou ◽  
Yun Xu ◽  
Ni-Ya Li
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
Three Dimensional ◽  
Substituent Effects ◽  
Dicarboxylic Acids ◽  
Two Dimensional ◽  
Reaction Conditions ◽  
Thermal Stabilities ◽  
Coordination Network ◽  
Potential Applications

In recent years, the design and construction of crystalline coordination complexes by the assembly of metal ions with multitopic ligands have attracted considerable attention because of the unique architectures and potential applications of these compounds. Two new coordination polymers, namely poly[[μ-trans-1-(2-aminopyridin-3-yl)-2-(pyridin-4-yl)ethene-κ2 N:N′](μ3-5-methylisophthalato-κ4 O 1,O 1′:O 3:O 3′)cadmium(II)], [Cd(C9H6O4)(C12H11N3)] n or [Cd(5-Me-ip)(2-NH2-3,4-bpe)] n , (I), and poly[[μ-trans-1-(2-aminopyridin-3-yl)-2-(pyridin-4-yl)ethene-κ2 N:N′](μ2-5-hydroxyisophthalato-κ4 O 1,O 1′:O 3:O 5)cadmium(II)], [Cd(C8H4O5)(C12H11N3)] n or [Cd(5-HO-ip)(2-NH2-3,4-bpe)] n , (II), have been prepared hydrothermally by the self-assembly of Cd(NO3)2·4H2O and trans-1-(2-aminopyridin-3-yl)-2-(pyridin-4-yl)ethene (2-NH2-3,4-bpe) with two similar dicarboxylic acids, i.e. 5-methylisophthalic acid (5-Me-H2ip) and 5-hydroxyisophthalic acid (5-HO-H2ip). The coordination network of (I) is a two-dimensional sql net parallel to (101). Adjacent sql nets are further linked to form a three-dimensional supramolecular framework via hydrogen-bonding interactions. Compound (II) is a two-dimensional (3,5)-connected coordination network parallel to (010) with the point symbol (63)(55647). As the other reactants and reaction conditions are the same, the structural differences between (I) and (II) are undoubtedly determined by the different substituent groups in the 5-position of isophthalic acid. Both (I) and (II) exhibit good thermal stabilities and photoluminescence properties.

Construction of a three-dimensional supramolecular framework based on an anionic cadmium(II) coordination network and protonated dipyridine organic cations

2018 ◽  
Vol 74 (8) ◽  
pp. 889-893
Author(s):  
Qian-Kun Zhou ◽  
Lin Wang ◽  
Dong Liu
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Title Compound ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Coordination Network ◽  
Hydrogen Bonding Interactions ◽  
Point Symbol

As a class of multifunctional materials, crystalline supramolecular complexes have attracted much attention because of their unique architectures, intriguing topologies and potential applications. In this article, a new supramolecular compound, namely catena-poly[4,4′-(buta-1,3-diene-1,4-diyl)dipyridin-1-ium [(μ4-benzene-1,2,4,5-tetracarboxylato-κ6 O 1,O 1′:O 2:O 4,O 4′:O 5)cadmium(II)]], {(C14H14N2)[Cd(C10H2O8)]} n or {(1,4-H2bpbd)[Cd(1,2,4,5-btc)]} n , has been prepared by the self-assembly of Cd(NO3)2·4H2O, benzene-1,2,4,5-tetracarboxylic acid (1,2,4,5-H4btc) and 1,4-bis(pyridin-4-yl)buta-1,3-diene (1,4-bpbd) under hydrothermal conditions. The title compound has been structurally characterized by IR spectroscopy, elemental analysis, powder X-ray diffraction and single-crystal X-ray diffraction analysis. Each CdII centre is coordinated by six O atoms from four different (1,2,4,5-btc)4− tetraanions. Each CdII cation, located on a site of twofold symmetry, binds to four carboxylate groups belonging to four separate (1,2,4,5-btc)4− ligands. Each (1,2,4,5-btc)4− anion, situated on a position of \overline{1} symmetry, binds to four crystallographically equivalent CdII centres. Neighbouring CdII cations interconnect bridging (1,2,4,5-btc)4− anions to form a three-dimensional {[Cd(1,2,4,5-btc)]2−} n anionic coordination network with infinite tubular channels. The channels are visible in both the [1\overline{1}0] and the [001] direction. Such a coordination network can be simplified as a (4,4)-connected framework with the point symbol (4284)(4284). To balance the negative charge of the metal–carboxylate coordination network, the cavities of the network are occupied by protonated (1,4-H2bpbd)2+ cations that are located on sites of twofold symmetry. In the crystal, there are strong hydrogen-bonding interactions between the anionic coordination network and the (1,4-H2bpbd)2+ cations. Considering the hydrogen-bonding interactions, the structure can be further regarded as a three-dimensional (4,6)-connected supramolecular architecture with the point symbol (4264)(42687·84). The thermal stability and photoluminescence properties of the title compound have been investigated.

scholarly journals In Situ Synthesis of Structural Hierarchy Flowerlike Zeolite and Its Application for Fluoride Removal in Aqueous Solution

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Zhihan Tian ◽  
Yiqun Gan
Keyword(s):  
Ph Value ◽  
Three Dimensional ◽  
Adsorption Properties ◽  
Aluminum Silicate ◽  
Fluoride Removal ◽  
Fluoride Ions ◽  
Structural Hierarchy ◽  
Hydrated Aluminum ◽  
Pseudo Second Order ◽  
Ft Ir

A three-dimensional hierarchically structured flowerlike zeolite was synthesized using naturally occurring nanohalloysite (HNT) by hydrothermal methods. Halloysite a hydrated aluminum silicate with nanohollow morphology, microporosity, and environmentally friendly properties was chosen to be the sole precursor. The morphology and structure of the composite that was prepared was characterized using XRD, FT-IR, BET, TG, SEM, HRTEM, and NMR. SEM and HRTEM images indicated that the synthesized zeolite has a flowerlike hierarchical structure, with well-defined edges and uniform pore channels. FT-IR and NMR spectra indicated that different species of silicon and aluminum were present in the synthesized zeolite. The zeolite was applied in fluoride (F-) removal from aqueous solutions. Single-factor studies, including the initial concentration of F-, initial adsorbent concentration, and the effect of pH value on the adsorption properties, were investigated to evaluate the removal behavior of F- by the zeolite. The zeolite exhibited strong adsorption properties for fluoride ions (F-), with an adsorption capacity up to 161 mg g-1. The pseudo-second-order kinetics and Freundlich models were the best fit to the kinetics and isotherm experimental data, respectively.

Effects of adsorption properties of particle electrodes on the degradation of acid red 14 using three-dimensional electrode system

2017 ◽  
Vol 78 ◽  
pp. 263-272 ◽  
Author(s):  
Feizhen Li ◽  
Di Xie ◽  
Yuan Zhao ◽  
Lijun Liu ◽  
Wenyan Liang
Keyword(s):  
Three Dimensional ◽  
Electrode System ◽  
Adsorption Properties

Thermal Transformation of a Zero-Dimensional Thiocyanate Precursor into a Ferromagnetic Three-Dimensional Coordination Network via a Layered Intermediate

2017 ◽  
Vol 17 (7) ◽  
pp. 3997-4005 ◽  
Author(s):  
Stefan Suckert ◽  
Michał Rams ◽  
Luzia S. Germann ◽  
Daria M. Cegiełka ◽  
Robert E. Dinnebier ◽  
...  
Keyword(s):  
Thermal Transformation ◽  
Three Dimensional ◽  
Coordination Network

scholarly journals Model Smoke Stream Adsorption over Cellulose Acetate Stick with Three-dimensional Temperature Gradient by Combining in-situ DRIFTS with Infrared Thermal Imaging

2021 ◽  
Author(s):  
Xin Xu ◽  
Xi Du ◽  
Feng Zheng ◽  
Lisheng Guo ◽  
Panwei Shi ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Cellulose Acetate ◽  
Human Health ◽  
Thermal Imaging ◽  
Three Dimensional ◽  
Adsorption Properties ◽  
Mathematical Explanation ◽  
Infrared Thermal Imaging ◽  
Different Temperatures

Abstract Understanding the adsorption of the smoke stream (SR) on cellulose acetate stick as cigarette filter with different temperatures is beneficial for controlling chemical emissions and reducing the toxic effect of smoking on human health. However the investigation of corresponding adsorption properties was missing because the adsorption of smoke stream (SR) on cigarette cellulose acetate stick is sensitive with the three-dimensional temperature gradient. In this work, the adsorption of typical smoke stream substances, such as CO, propylene glycol, formaldehyde, and acetone, on cellulose acetate stick were studied by in-situ diffuse reflectance Fourier transform infrared spectroscopy with different temperatures assisted by the infrared thermal imaging method. The adsorption capacities of cellulose acetate stick to these typical smoke stream substances is dependent on the adsorption time and temperature. The adsorption properties all fitted well with the Freundlich model. By a spectroscopic and mathematical explanation, quantifying contours of adsorption was performed. The 3D model of the normalized CO adsorption of cellulose acetate stick versus the spatial coordinates and time was established. This study gives unparalleled insight into smoking release characteristics of tobacco filtered by cellulose acetate and regulating cellulose acetate stick for reducing the negative effect of smoke on human health.

The three-dimensional coordination network in poly[di-μ3-cyanido-μ5-[5-(pyridin-4-yl)tetrazolato]-tricopper(I)]

2012 ◽  
Vol 68 (7) ◽  
pp. m194-m196 ◽  
Author(s):  
Gao-Xiang Meng ◽  
Jian-Hui Zhu ◽  
Ya-Min Feng ◽  
Xin-Tang Huang ◽  
He-Lin Yang
Keyword(s):  
Coordination Polymer ◽  
Three Dimensional ◽  
The Other ◽  
Coordination Environment ◽  
Connected Network ◽  
Twofold Axis ◽  
Coordination Network ◽  
Tetrahedral Environment

In the title three-dimensional tetrazolate-based coordination polymer, poly[bis(μ3-cyanido-κ3N:C:C)[μ5-5-(pyridin-4-yl)tetrazolato-κ5N:N′:N′′:N′′′:N′′′′]tricopper(I)], [Cu3(C6H4N5)(CN)2]n, there are two types of coordinated CuIatoms. One type exhibits a tetrahedral environment and the other, residing on a twofold axis, adopts a trigonal coordination environment. The closest Cu...Cu distance is only 2.531 (2) Å, involving a bridging cyanide C atom. All four tetrazolate and the pyridine N atom of the 4-(pyridin-4-yl)-1H-tetrazolate anion are coordinated to these CuIatoms and exhibit a μ5-bridging mode. The three-dimensional coordination network can be topologically simplified as a rarely observed (3,3,4,5)-connected network with the Schläfli symbol (4.6.84)2.(42.6.87).(6.82)3.

Three-dimensional Copper(I) Halide Based Coordination Networks with Asymmetrically Substituted Bridging N-Donor Ligands

1999 ◽  
Vol 54 (12) ◽  
pp. 1510-1516 ◽  
Author(s):  
B. Roßenbeck ◽  
W. S. Sheldrick
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
Three Dimensional ◽  
Donor Ligands ◽  
Connectivity Pattern ◽  
Acetonitrile Solution ◽  
Coordination Networks ◽  
Reaction Conditions ◽  
Coordination Network ◽  
Discrete Complex

The discrete complex [(Cul)2 (pyzCN)4] (1) and the coordination polymers 1∞ [CuI(pyzCN)] (2) and 3∞ [(CuX)3 (pyzCN)2] (3, 4; X = Br, Cl) may be prepared from the respective copper(I) halide CuX and 2-cyanopyrazine (pyzCN) by self-assembly in acetonitrile solution at 100- 120°C. Whereas 2 exhibits 1 [Cul] staircase double chains as its characteristic substructure, the three-dimensional networks of 3 and 4 contain single zigzag CuX strings. The influence of the copper(I) halide on both the connectivity pattern and the dimensionality of a resulting coordination network is particularly apparent for the 1:1 complexes 1∞ [CuI(pymMe)] (5), 3∞ [(CuBr)3(pymMe)3] (6) and 2∞ [CuCl(pymMe)] (7), which were generated by reaction of CuX with 4-methylpyrimidine (pymMe) under reaction conditions similar to those above.

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