Synthesis and Characterization of Sulfide, Sulfide−Sulfonium, and Bissulfide Derivatives of [B12H12]2-. Additivity of Me2S and MeS-Substituent Effects in11B NMR Spectra of Disubstituted Icosahedral Boron Clusters†

2000 ◽  
Vol 39 (15) ◽  
pp. 3333-3341 ◽  
Author(s):  
Roman G. Kultyshev ◽  
Jianping Liu ◽  
Edward A. Meyers ◽  
Sheldon G. Shore
Keyword(s):  
Nmr Spectra ◽  
Substituent Effects ◽  
Synthesis And Characterization ◽  
Boron Clusters ◽  
Derivatives Of

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.

The synthesis and characterization of new aminoadamantane derivatives of hexachloro-cyclo-triphosphazene

Polyhedron ◽  
2008 ◽  
Vol 27 (9-10) ◽  
pp. 2077-2082 ◽  
Author(s):  
Radka Kočí Voznicová ◽  
Jan Taraba ◽  
Jiří Příhoda ◽  
Milan Alberti
Keyword(s):  
Synthesis And Characterization ◽  
Derivatives Of

Nuclear magnetic resonance characterization of the ring conformations of monosubstituted derivatives of 1,3-dioxa-5,6-benzocycloheptene

1983 ◽  
Vol 61 (1) ◽  
pp. 109-115 ◽  
Author(s):  
R. St-Amour ◽  
M. St-Jacques
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Substituent Effects ◽  
Steric Effects ◽  
Slow Exchange ◽  
Conformational Properties ◽  
Derivatives Of ◽  
Ring Conformations ◽  
Twist Boat

The conformational properties of 2-alkyl (Me, Et, i-Pr, and t-Bu) and 2-phenyl derivatives of 1,3-dioxa-5,6-benzocycloheptene (1) were studied by 13C dnmr. Analysis of slow exchange spectra at 100.6 MHz indicates that all derivatives except tert-butyl exist in an equilibrium of chair (major) and twist-boat (minor) conformations. Substituent effects on the position of the equilibrium are rationalized in terms of steric effects.

Synthesis and characterization of novel 2,5-diphenyl-1,3,4-oxadiazole derivatives of anthracene and its application as electron transporting blue emitters in OLEDs

2011 ◽  
Vol 161 (9-10) ◽  
pp. 869-880 ◽  
Author(s):  
M. Ananth Reddy ◽  
G. Mallesham ◽  
Anup Thomas ◽  
Kola Srinivas ◽  
V. Jayathirtha Rao ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Oxadiazole Derivatives ◽  
Blue Emitters ◽  
Derivatives Of

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%.

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