scholarly journals Synthesis and Characterization of [Sa(p-anisal-DA)4(H2O)2]by insitu Method

2019 ◽  
Vol 9 (2S4) ◽  
pp. 264-267
Keyword(s):  
Schiff Base ◽  
Metal Complex ◽  
Base Metal ◽  
Fourier Transforms ◽  
Molar Ratio ◽  
Nitrate Hexahydrate ◽  
X Ray Diffraction ◽  
Fourier Transforms Infrared Spectroscopy ◽  
Samarium Nitrate

The insitu synthesis of Schiff base metal complex using N-phenyl-1,4-phenylenediamine (DA), p-anisaldehyde (p-anisal) as starting materials with samarium nitrate hexahydrate (Sa(NO3)2.6H2O) as a metal precursor in the molar ratio (1:1:1 M) at room temperature. The prepared metal complex is washed with several times with ethanol and boiled water for the removal of un-reacted starting materials completely. The following techniques are used to confirm the prepared Schiff base metal complex by UV-visible spectroscopy, Fourier Transforms Infrared spectroscopy, X-ray diffraction pattern and Cyclic Voltammetry.

scholarly journals One Pot Synthesis and Characterization of Palladium [Pd(Anil-Tolu)4(H2O)2]by insitu Method

2019 ◽  
Vol 9 (2S4) ◽  
pp. 273-276
Keyword(s):  
Metal Complex ◽  
Fourier Transforms ◽  
Molar Ratio ◽  
Nitrate Hexahydrate ◽  
X Ray Diffraction ◽  
One Pot ◽  
Prepared Material ◽  
Palladium Nitrate ◽  
Fourier Transforms Infrared Spectroscopy

The insitu synthesis of Schiff base metal complex using p-toluedine (p-tolu), p-anisaldehyde (p-anisal) as starting materials with Palladium nitrate hexahydrate (Pd(NO3)2.6H2O) as a metal precursor in the molar ratio (1:1:1 M) at room temperature. The prepared metal complex is washed with several times with ethanol and boiled water for the removal of un-reacted materials completely. To confirm the prepared material by the following characterization like UV-visible spectroscopy, Fourier Transforms Infrared spectroscopy, X-ray diffraction pattern and Cyclic Voltammetry.

scholarly journals Single Pot Synthesis, Characterization of Nickel Schiff Base Metal Complex by in-Situ Method

2019 ◽  
Vol 9 (2S4) ◽  
pp. 260-263
Keyword(s):  
Schiff Base ◽  
Metal Complex ◽  
Base Metal ◽  
Fourier Transforms ◽  
Complete Removal ◽  
Nitrate Hexahydrate ◽  
X Ray Diffraction ◽  
Prepared Material ◽  
Nickel Nitrate Hexahydrate

The insitu synthesis of Schiff base metal complex using p-toluedine (p-tolu), p-anisaldehyde (p-anisal) as starting materials with Nickel nitrate hexahydrate (Ni(NO3)2.6H2O) used as a precursor for metal in equimolar ratio (1:1:1 M) at room temperature. The prepared metal complex is washed with several times with ethanol and boiled water for the complete removal of un-reacted species. To confirm the prepared material by the following characterization like UV-visible, Fourier Transforms Infrared spectroscopy, X-ray diffraction pattern and Cyclic Voltammetry.

scholarly journals In-Situ Synthesis and Characterization of Schiff base [Zn(Anil-oPD)4] Metal Complex

2019 ◽  
Vol 9 (2S4) ◽  
pp. 270-272
Keyword(s):  
Schiff Base ◽  
Metal Complex ◽  
Fourier Transforms ◽  
Complete Removal ◽  
Nitrate Hexahydrate ◽  
X Ray Diffraction ◽  
Ft Ir ◽  
Nickel Nitrate Hexahydrate

The insitu synthesis of Schiff base metal complex using o-phenylenediamine (oPD) and p-anisaldehyde (p-anisal) as starting materials with Nickel nitrate hexahydrate (Zn(NO3)2.6H2O) as a metal precursor in equimolar ratio (1:1:1 M) at room temperature. After the reaction time, the prepared metal complex washed several times with ethanol and boiled water for complete removal of un-reacted starting materials. The following characterization was used to confirm the metal complex by UV-visible spectroscopy (UV-Vis.), Fourier Transforms-Infrared spectroscopy (FT-IR), X-ray diffraction pattern (XRD) and Cyclic Voltammetry (CV).

Synthesis and Characterization of Ag Doped Hydroxylapatite as an Antibacterial Scaffolds Material

2009 ◽  
Vol 283-286 ◽  
pp. 250-255 ◽  
Author(s):  
Abdurrahman Bahadir ◽  
Celaletdin Ergun ◽  
Murat Baydogan
Keyword(s):  
Fourier Transforms ◽  
Precipitation Method ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Scaffold Fabrication ◽  
Density Measurements ◽  
X Ray ◽  
Fourier Transforms Infrared Spectroscopy ◽  
And Behavior

Not many studies have been found in the literature on the effect of Ag ions on the structure and phase stability of hydroxylapatite which may be recognized as important information in the scaffold fabrication. The objective of the current study is to develop a better understanding on the structure and behavior of the antibacterial Ag incorporated hydroxylapatite. In order to do this, Ag doped hydroxylapatite was made by a precipitation method, and sintered in air at 1300oC. The materials were characterized by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), density measurements and scanning electron microscopy (SEM).

scholarly journals Synthesis and Structural Characterization of (E)-4-[(2-Hydroxy-3-methoxybenzylidene)amino]butanoic Acid and Its Novel Cu(II) Complex

Molbank ◽  
10.3390/m1179 ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. M1179
Author(s):  
Eleftherios Halevas ◽  
Antonios Hatzidimitriou ◽  
Barbara Mavroidi ◽  
Marina Sagnou ◽  
Maria Pelecanou ◽  
...  
Keyword(s):  
Schiff Base ◽  
Gamma Aminobutyric Acid ◽  
X Ray Diffraction ◽  
Reaction Conditions ◽  
Polymeric Compound ◽  
Bridging Ligands ◽  
1H And 13C Nmr ◽  
One Dimensional ◽  
Ft Ir

A novel Cu(II) complex based on the Schiff base obtained by the condensation of ortho-vanillin with gamma-aminobutyric acid was synthesized. The compounds are physico-chemically characterized by elemental analysis, HR-ESI-MS, FT-IR, and UV-Vis. The complex and the Schiff base ligand are further structurally identified by single crystal X-ray diffraction and 1H and 13C-NMR, respectively. The results suggest that the Schiff base are synthesized in excellent yield under mild reaction conditions in the presence of glacial acetic acid and the crystal structure of its Cu(II) complex reflects an one-dimensional polymeric compound. The molecular structure of the complex consists of a Cu(II) ion bound to two singly deprotonated Schiff base bridging ligands that form a CuN2O4 chelation environment, and a coordination sphere with a disordered octahedral geometry.

Sol-gel synthesis and characterization of Ag nanoparticles in ZrO2 thin films

2009 ◽  
Vol 24 (8) ◽  
pp. 2541-2546 ◽  
Author(s):  
Eisuke Yokoyama ◽  
Hironobu Sakata ◽  
Moriaki Wakaki
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Composite Films ◽  
Dip Coating ◽  
Molar Ratio ◽  
X Ray Diffraction ◽  
Silver Surface ◽  
Molar Ratios ◽  
Sol Gel Synthesis

ZrO2 thin films containing silver nanoparticles were prepared using the sol-gel method with Ag to Zr molar ratios [Ag]/[Zr] = 0.11, 0.25, 0.43, 0.67, 1.00, 1.50, and 2.33. After dip coating on glass substrate, coated films were annealed at 200 and 300 °C in air. X-ray diffraction peaks corresponding to crystalline Ag were observed, but a specific peak corresponding to ZrO2 was not observed. At the molar ratio [Ag]/[Zr] = 0.25, the particle size of Ag distributed broadly centered at 17 nm for an annealing temperature of 200 °C and at 25 nm for 300 °C. The films annealed in air at 200 °C showed an absorption band centered at 450 nm because of the silver surface plasmon resonance, whereas films heated at 300 °C in air caused a red shift of the absorption to 500 nm. The absorption peak was analyzed using the effective dielectric function of Ag-ZrO2 composite films modeled with the Maxwell-Garnett expression.

Stability of sodalite relative to nepheline in NaCl–H2O brines at 750 °C: Implications for hydrothermal formation of sodalite

2020 ◽  
Vol 58 (1) ◽  
pp. 3-18 ◽  
Author(s):  
Jonathan B. Schneider ◽  
David M. Jenkins
Keyword(s):  
Infrared Spectroscopy ◽  
Constant Temperature ◽  
Molar Ratio ◽  
Standard State ◽  
X Ray Diffraction ◽  
Cage Structure ◽  
X Ray ◽  
Brine Concentration

ABSTRACT Formation of the feldspathoid sodalite (Na6Al6Si6O24·2NaCl) by reaction of nepheline (NaAlSiO4) with NaCl-bearing brines was investigated at 3 and 6 kbar and at a constant temperature of 750 °C to determine the brine concentration at which sodalite forms with variation in pressure. The reaction boundary was located by reaction-reversal experiments in the system NaAlSiO4–NaCl–H2O at a brine concentration of 0.16 ± 0.08 XNaCl [= molar ratio NaCl/(NaCl + H2O)] at 3 kbar and at a brine concentration of 0.35 ± 0.03 XNaCl at 6 kbar. Characterization of the sodalite using both X-ray diffraction and infrared spectroscopy after treatment in these brines indicated no obvious evidence of water or hydroxyl incorporation into the cage structure of sodalite. The data from this study were combined with earlier results by Wellman (1970) and Sharp et al. (1989) at lower (1–1.5 kbar) and higher (7–8 kbar) pressures, respectively, on sodalite formation from nepheline and NaCl which models as a concave-down curve in XNaCl – P space. In general, sodalite buffers the concentration of neutral aqueous NaCl° in the brine to relatively low values at P < 4 kbar, but NaCl° increases rapidly at higher pressures. Thermochemical modeling of these data was done to determine the activity of the aqueous NaCl° relative to a 1 molal (m) standard state, demonstrating very low activities (<0.2 m, or 1.2 wt.%) of NaCl° at 3 kbar and lower, but rising to relatively high activities (>20 m, or 54 wt.%) of NaCl° at 6 kbar or higher. The results from this study place constraints on the concentration of NaCl° in brines coexisting with nepheline and sodalite and, because of the relative insensitivity of this reaction to temperature, can provide a convenient geobarometer for those localities where the fluid compositions that formed nepheline and sodalite can be determined independently.

Synthesis and characterization of 2-quinoxalinol Schiff-base metal complexes

2009 ◽  
Vol 362 (6) ◽  
pp. 1847-1854 ◽  
Author(s):  
Xianghong Wu ◽  
Mohan S. Bharara ◽  
Travis H. Bray ◽  
Brandon K. Tate ◽  
Anne E.V. Gorden
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Base Metal ◽  
Synthesis And Characterization ◽  
Schiff Base Metal Complexes

Synthesis and Characterization of Pd/Ag/SiO2 Nano-Composite Materials

2017 ◽  
Vol 726 ◽  
pp. 204-209 ◽  
Author(s):  
Jing Yang ◽  
Bao Song Li ◽  
Zhi Tong ◽  
Rui Hua Mu
Keyword(s):  
Zeta Potential ◽  
Size Distribution ◽  
Sol Gel ◽  
Linear Structure ◽  
Nitrogen Atmosphere ◽  
Molar Ratio ◽  
Powder Materials ◽  
X Ray Diffraction ◽  
Silica Network

Pd/Ag/SiO2 sols and powder materials were prepared by adding AgNO3 and Pd (NO3)2·2H2O into a methyl-modified silica sol. Tetraethylorthosilicate and methyltriethoxysilane were used as the silica precursor for the sol-gel reaction. The obtained SiO2 sols and powder materials were characterized by sol particle size distribution, zeta potential analysis, UV-Vis spectra, Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) measurement. It was found that most of the particle sizes of the prepared Pd/Ag/SiO2 sols are about 2~10 nm with narrow size distribution. The zeta potential of Pd/Ag/SiO2 sol with Pd/Ag molar ratio of 7.5/2.5 presents the highest value. The FTIR analysis substantiates that the Si-CH3 groups exist in the silica network and the formed Pd/Ag/SiO2 sol particles possess linear structure. XRD characterization indicates that the Pd2+ and Ag+ in the Pd/Ag/SiO2 materials had be reduced to Pd0 and Ag0, respectively, after annealed in a nitrogen atmosphere at 350°C.

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