Construction of Cd(II) compounds with a chelating ligand 2,2′-dipyridiylamine (Hdpa): Anion effect, catalytic activities and luminescence

Polyhedron ◽  
2010 ◽  
Vol 29 (2) ◽  
pp. 773-786 ◽  
Author(s):  
Byeong Kwon Park ◽  
Geun Hee Eom ◽  
Soo Hyun Kim ◽  
Han Kwak ◽  
Seung Man Yoo ◽  
...  
Keyword(s):  
Anion Effect ◽  
Catalytic Activities ◽  
Chelating Ligand

Construction of ZnII Compounds with a Chelating 2,2′-Dipyridylamine (Hdpa) Ligand: Anion Effect and Catalytic Activities

2008 ◽  
Vol 2008 (3) ◽  
pp. 408-415 ◽  
Author(s):  
Han Kwak ◽  
Sun Hwa Lee ◽  
Soo Hyun Kim ◽  
Young Min Lee ◽  
Eun Yong Lee ◽  
...  
Keyword(s):  
Anion Effect ◽  
Catalytic Activities

Anion effects on construction of cadmium(II) compounds with a chelating ligand bis(2-pyridylmethyl)amine: Their photoluminescence and catalytic activities

2012 ◽  
Vol 387 ◽  
pp. 106-116 ◽  
Author(s):  
Geun Hee Eom ◽  
Jin Hoon Kim ◽  
Young Dan Jo ◽  
Eun Young Kim ◽  
Jeong Mi Bae ◽  
...  
Keyword(s):  
Catalytic Activities ◽  
Chelating Ligand

Anion effects on construction of ZnII compounds with a chelating ligand bis(2-pyridylmethyl)amine and their catalytic activities

2011 ◽  
Vol 366 (1) ◽  
pp. 337-343 ◽  
Author(s):  
Youngmee Kim ◽  
Byeong Kwon Park ◽  
Geun Hee Eom ◽  
Soo Hyun Kim ◽  
Hyun Min Park ◽  
...  
Keyword(s):  
Catalytic Activities ◽  
Chelating Ligand

Construction of HgII complexes containing chelating 2,2′-dipyridylamine ligands: Anion effect, photoluminescence and catalytic activities

2012 ◽  
Vol 15 ◽  
pp. 212-215 ◽  
Author(s):  
Ju Hoon Lee ◽  
Hyun Min Park ◽  
Seung Pyo Jang ◽  
Geun Hee Eom ◽  
Jeong Mi Bae ◽  
...  
Keyword(s):  
Anion Effect ◽  
Catalytic Activities

Photocatalytic activity of TiO2 synthesized by anodization and anodic spark deposition

MRS Advances ◽  
2020 ◽  
Vol 5 (61) ◽  
pp. 3141-3152
Author(s):  
Alma C. Chávez-Mejía ◽  
Génesis Villegas-Suárez ◽  
Paloma I. Zaragoza-Sánchez ◽  
Rafael Magaña-López ◽  
Julio C. Morales-Mejía ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Photocatalytic Activity ◽  
Surface Characteristics ◽  
Amorphous Solids ◽  
X Ray Diffraction ◽  
X Ray ◽  
Catalytic Activities ◽  
Anodic Spark Oxidation ◽  
Porous Surfaces ◽  
Scanning Electron

AbstractSeveral photocatalysts, based on titanium dioxide, were synthesized by spark anodization techniques and anodic spark oxidation. Photocatalytic activity was determined by methylene blue oxidation and the catalytic activities of the catalysts were evaluated after 70 hours of reaction. Scanning Electron Microscopy and X Ray Diffraction analysis were used to characterize the catalysts. The photocatalyst prepared with a solution of sulfuric acid and 100 V presented the best performance in terms of oxidation of the dye (62%). The electric potential during the synthesis (10 V, low potential; 100 V, high potential) affected the surface characteristics: under low potential, catalyst presented smooth and homogeneous surfaces with spots (high TiO2 concentration) of amorphous solids; under low potential, catalyst presented porous surfaces with crystalline solids homogeneously distributed.

Synthesis, Characterization and Biological Activity of Nitrogen­ Oxygen-Sulfur (NOS) Transition Metal Complexes Derived from Novel S-2,4-dichlorobenzyldithiocarbazate with 5-fluoroisatin

2010 ◽  
Vol 7 (2) ◽  
pp. 67
Author(s):  
Mohd Abdul Fatah Abdul Manan ◽  
Hadariah Bahron ◽  
Karimah Kassim ◽  
Mohd Asrul Hafaz Mohamad ◽  
Syed Nazmi Sayed Mohamad
Keyword(s):  
Bacillus Subtilis ◽  
Schiff Base ◽  
Metal Complexes ◽  
Condensation Reaction ◽  
Schiff Base Complex ◽  
Inhibition Zone ◽  
Azomethine Nitrogen ◽  
Strong Activity ◽  
Chelating Ligand ◽  
Physico Chemical

A novel Schiff base containing nitrogen-oxygen-sulfur (NOS) donor atoms formed from the condensation reaction of S-2,4-dichlorobenzyldithiocarbazate (S-2,4BDTC) with 5-fluroisatin has been synthesized. Complexes of cobalt(II), nickel(II), copper(II), zinc(II) and cadmium(II) with this Schiff base have been prepared and characterized using elemental analysis and various physico-chemical techniques. In the cobalt(II) and nickel(II) complexes the Schiff base behaves as a uninegatively charged tridentate nitrogen-oxygen-sulfur (NOS) chelating ligand, bonding through the azomethine nitrogen, thiolate sulfur and carbonylic oxygen of the isatin moiety. However, in the copper(II), zinc(II) and cadmium(II) complexes the Schiff base behaves as a nitrogen-sulfur (NS) bidentate chelating ligand, bonding through the azomethine nitrogen and thiolate sulfur. The Schiff base and the metal complexes were evaluated with respect to antimicrobial activity, which was performed in relation to two selected pathogenic microbials (Bacillus subtilis and Pseudomonas aeruginosa). It was observed that only the zinc Schiff base complex exhibited strong activity against the Bacillus subtilis bacteria with an inhibition zone of 25 mm. 

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