Crystal Structure and Gas Adsorption Property of Rhodium(II) Benzoate Pyrazine

2002 ◽  
Vol 31 (12) ◽  
pp. 1208-1209 ◽  
Author(s):  
Satoshi Takamizawa ◽  
Taku Hiroki ◽  
Ei-ichi Nakata ◽  
Katsura Mochizuki ◽  
Wasuke Mori
Keyword(s):  
Crystal Structure ◽  
Gas Adsorption ◽  
Adsorption Property

scholarly journals SYNTHESIS, CRYSTAL STRUCTURE, MAGNETIC PROPERTY, AND N2-GAS-ADSORPTION PROPERTY OF DINUCLEAR COPPER(II) 3,4,5-TRIMETHOXYBENZOATE

2017 ◽  
Vol 5 (sp.is.1) ◽  
pp. 103-110
Author(s):  
Masahiro Mikuriya ◽  
Chihiro Yamakawa ◽  
Kensuke Tanabe ◽  
Daisuke Yoshioka ◽  
Ryoji Mitsuhashi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Property ◽  
Gas Adsorption ◽  
Adsorption Property ◽  
Dinuclear Copper ◽  
N2 Gas Adsorption

scholarly journals Dinuclear Copper(II) 3,4,5-Tri-O-benzylgallate

2019 ◽  
Vol 6 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Masahiro Mikuriya ◽  
Chihiro Yamakawa ◽  
Naoyuki Masuda ◽  
Daisuke Yoshioka ◽  
Sayuri Yamaguchi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Total Synthesis ◽  
Temperature Dependence ◽  
Gas Adsorption ◽  
Adsorption Property ◽  
Copper Acetate ◽  
Xrd Analysis ◽  
Carboxylate Ligand ◽  
Dinuclear Copper ◽  
Carboxylate Complex

Background:Ellagitannins have attracted much attention because of the biological and pharmacological activities. In the total synthesis of ellagitannins, 3,4,5-tri-O-benzylgallic acid has been a key compound to introduce the protected galloyl group. From the perspective of coordination chemistry, 3,4,5-tri-O-benzylgallic acid is an interesting carboxylate ligand which might be capable of dinuclear carboxylate complex. Such a dinuclear carboxylate complex might be interesting as a new example of copper acetate type complexes.Objectives:The objective of the work is to synthesize a copper acetate type complex by using 3,4,5-tri-O-benzylgallic acid and to see a new feature of copper acetate compounds, by elucidating the crystal structure, magnetic property, and adsorption property for N2gas.Methods:Copper(II) 3,4,5-tri-O-benzylgallate has been synthesized by a reaction of 3,4,5-tri-O-benzylgallic acid and copper(II) nitrate at pH=9 condition. The isolated complex was characterized using single-crystal X-ray structure analysis, XRD analysis, UV-visible spectroscopy, IR spectroscopy, and temperature dependence of magnetic susceptibility.Results:The crystal structure shows a crystallographically centrosymmetric dinuclear molecule with four carboxylato-bridges and axial dimethylformamide molecules and crystal dmf molecules [Cu···Cu 2.6345(12) Å]. In the crystal, 1D supramolecular assembly by π-π interaction between the benzyl aromatic rings of dinuclear molecules was observed. Temperature dependence of magnetic susceptibilities showed a considerable antiferromagnetic interaction between the two copper(II) ions (2J = –214 cm–1). Type-II gas-adsorption property was observed for N2.Conclusion:A key-compound for the total synthesis of ellagitannins, 3,4,5-tri-O-benzylgallic acid (Htbng), was shown to be a new ligand for the synthesis of dinuclear copper acetate analogue with a lantern-type core, extending the realm of copper acetate clusters.

Kinetics Study of Aluminum Deposition on Inner Wall of Pipes by Atomic Layer Deposition

2012 ◽  
Vol 482-484 ◽  
pp. 627-632
Author(s):  
Heng Liu ◽  
Yu Qing Xiong ◽  
Ji Zhou Wang
Keyword(s):  
Crystal Structure ◽  
Atomic Layer Deposition ◽  
Gas Adsorption ◽  
Atomic Layer ◽  
Wave Guide ◽  
Kinetics Study ◽  
Kinetics Equation ◽  
Deposition Cycle ◽  
Layer Deposition ◽  
Aluminum Deposition

In this paper, feasibility of aluminium deposition on inner wall of pipes by atomic layer deposition was studied. Firstly, by solving kinetics equation of gas adsorption on the pipe inner wall, the time for the reactant to reach saturated adsorption on the wall was calculated. Secondly, according to the aluminium crystal structure, the thickness of each deposition cycle was obtained. Finally, the minimum aluminium thickness and number of atomic layer deposition cycles that can meet electromagnetic requirement of wave guide was calculated.

Enhanced gas adsorption property of hybrid nanopore-structured copper oxide synthesized from the carbon nanotube/copper composites

2010 ◽  
Vol 108 (6) ◽  
pp. 064303 ◽  
Author(s):  
Min Ha Lee ◽  
Kyung Tae Kim ◽  
Thomas Gemming ◽  
Daniel J. Sordelet ◽  
Jürgen Eckert
Keyword(s):  
Carbon Nanotube ◽  
Copper Oxide ◽  
Gas Adsorption ◽  
Adsorption Property
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