Synthesis and Characterization of Ln/Al Pillared Clays

1996 ◽  
Vol 431 ◽  
Author(s):  
A. López-Ortega ◽  
J. M. Domínguez ◽  
A. Rojas-Hremández ◽  
A. Benitez-Patricio ◽  
M. Salmón
Keyword(s):  
Strong Interaction ◽  
Nmr Spectra ◽  
Chemical Interaction ◽  
Precursor Solution ◽  
Pillared Clays ◽  
Synthesis And Characterization

AbstractLa3+ −Al3+ and Ce3+ −A13+ pillar precursors were synthesized and intercalated in swelling montmorillonite type clays. 27Al-NMR and 139La-NMR spectra do not confirm chemical interaction between Al and La ions in solution, but after pillaring and calcination (400°C) d-spacings in the range 18.5 Å−20.5 Å indicate indeed a strong interaction between the Al-La species. Also, Ce4+ (Sulfate) cations do interact with Al3+ in the pillar-precursor-solution, into the pH interval 2.78≤p.H ≤3.99.

Synthesis and Characterization of N-butyl-N-methylimidazolium- D-(-)-tartrate Chiral Ionic Liquid

2012 ◽  
Vol 518-523 ◽  
pp. 3989-3992 ◽  
Author(s):  
Yang Zhang ◽  
Xiao Hua Tu ◽  
Cheng Ping Miao ◽  
Jian Yi Wu
Keyword(s):  
Ionic Liquid ◽  
1H Nmr ◽  
Ion Chromatography ◽  
13C Nmr ◽  
Nmr Spectra ◽  
Optical Rotation ◽  
Synthesis And Characterization ◽  
13C Nmr Spectra ◽  
Chiral Ionic Liquid

A novel CIL of N-butyl-N-methyl imidazolium-D-(-)-tartrate has been designed and synthesized by neutralization reaction. Its structure was characterized by 1H-NMR and 13C-NMR spectra, the optical rotation was characterized by polarimeter with the value of-15.0º, and the purity was characterized by ion chromatography with the value of 98.4%.

Schwefel-Stickstoff-Verbindungen, VIII. Darstellung und Charakterisierung einiger aromatischer Schwefeldiimide / Sulfur-Nitrogen-Compounds, VIII Synthesis and Characterization of Some Aromatic Sulfurdiimines

1981 ◽  
Vol 36 (5) ◽  
pp. 551-555 ◽  
Author(s):  
Gilbert Brands ◽  
Alfred Golloch
Keyword(s):  
Thermal Stability ◽  
Nmr Spectra ◽  
Synthesis And Characterization ◽  
Nitrogen Compounds

The missing compounds of the series of sulfurdiimines R1 - N = S = N-R2 with R1/2 = C6H5, C6F5, C6H5S, C6F5S were prepared, and all ten compounds investigated. Thermal stability, UV/VIS-, IR-and 19F-NMR-spectra depend strongly on the combination of the substituents

Synthesis and Characterization of New 2-Methoxy-Thieno[2,3-d]pyrimidin-4(3H)-One

2012 ◽  
Vol 550-553 ◽  
pp. 89-92
Author(s):  
Lian Ying Lu ◽  
Zhong Shan Yu ◽  
Zheng Dong Fang ◽  
Yong Zhou Chen ◽  
Wen Zhou ◽  
...  
Keyword(s):  
1H Nmr ◽  
Efficient Method ◽  
Nmr Spectra ◽  
Wittig Reaction ◽  
Nucleophilic Reagent ◽  
1H Nmr Spectra ◽  
Synthesis And Characterization ◽  
Cyclization Process ◽  
Gewald Reaction

An efficient method is described for the synthesis of 2-methoxy-thieno[2,3-d]pyrimidin- 4(3H)-one (5) via Gewald reaction, a tandem aza-Wittig reaction and cyclization process. The key step is an aza-Wittig reaction between iminophosphorane (2), 4-chlorophenyl isocyanine and nucleophilic reagent CH3OH. Its structures were determined by means of MS, IR and 1H NMR spectra.

ChemInform Abstract: Synthesis and Characterization of Pillared Clays Containing Both Si and Al Pillars.

ChemInform ◽  
2010 ◽  
Vol 26 (42) ◽  
pp. no-no
Author(s):  
G. FETTER ◽  
D. TICHIT ◽  
L. C. DE MENORVAL ◽  
F. FIGUERAS
Keyword(s):  
Pillared Clays ◽  
Synthesis And Characterization

Synthesis and Characterization of Binuclear Ruthenium Vinyl Complexes with Dithienylethene Unit

2013 ◽  
Vol 834-836 ◽  
pp. 259-262
Author(s):  
Yan Lin ◽  
Han Feng Cui ◽  
Hao Fan
Keyword(s):  
Single Crystal ◽  
Elemental Analysis ◽  
Nmr Spectra ◽  
Synthesis And Characterization ◽  
Single Crystal Diffraction ◽  
X Ray

A novel binuclear ruthenium vinyl complexes with dithienylethene unit II [RuCl (CO)(PMe3)3]2(μ-CH=CH-DTE-CH=CH) has been synthesized and characterized by elemental analysis and NMR spectra. Meanwhile, the crystal of II was obtained and determined by X-ray single-crystal diffraction.

scholarly journals Synthesis and Characterization of Zinc(II)-Complexes with S-Alkyl Derivatives of Thiosalicylic Acid

2018 ◽  
Vol 19 (2) ◽  
pp. 113-117 ◽  
Author(s):  
Milos V. Nikolic ◽  
Marina Z. Mijajlovic ◽  
Dusan Lj. Tomovic ◽  
Andriana M. Bukonjic ◽  
Verica V. Jevtic ◽  
...  
Keyword(s):  
Nmr Spectra ◽  
Ethanol Solution ◽  
Alkyl Halides ◽  
Synthesis And Characterization ◽  
Direct Reaction ◽  
Thiosalicylic Acid ◽  
Alkyl Derivatives ◽  
Derivatives Of ◽  
C Nmr

Abstract New zinc(II)-complexes with S-alkyl derivatives of thiosalicylic acid (alkyl = benzyl-(L1), methyl-(L2), ethyl-(L3), propyl-(L4), butyl-(L5)) have been synthesized and characterized by elemental microanalysis, IR spectroscopy, and 1H and 13C NMR spectroscopy. The S-alkyl derivatives of thiosalicylic acid were prepared by alkylation of thiosalicylic acid by adding alkyl halides to an alkaline water-ethanol solution, while the corresponding zinc(II)-complexes were obtained via the direct reaction of ZnCl2 with S-alkyl derivatives of thiosalicylic acid in water. Based on the microanalysis results and the IR and NMR spectra of the S-alkyl derivatives of thiosalicylic acid and the corresponding zinc(II)-complexes, we concluded that the ligands are bidentately coordinated to the zinc(II)-ion.

Synthesis and characterization of copper-loaded titania pillared clays

2003 ◽  
pp. 587-594
Author(s):  
Z. Ding ◽  
R.L. Frost ◽  
J.T. Kloprogge ◽  
G.Q. Lu ◽  
H.Y. Zhu
Keyword(s):  
Pillared Clays ◽  
Synthesis And Characterization

Synthesis and characterization of a macrocyclic Schiff base GdIII complex as a relaxation agent for a faster acquisition of 2H NMR spectra of ethanol

2004 ◽  
Vol 357 (5) ◽  
pp. 1374-1380 ◽  
Author(s):  
Sergio Tamburini ◽  
Patrizia Tomasin ◽  
Pietro A Vigato ◽  
Silvio Aime ◽  
Mauro Botta ◽  
...  
Keyword(s):  
Schiff Base ◽  
Nmr Spectra ◽  
Synthesis And Characterization ◽  
2H Nmr ◽  
Macrocyclic Schiff Base
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