scholarly journals Clear distinction between CAC and CMC revealed by high-resolution NMR diffusometry for a series of bis-imidazolium gemini surfactants in aqueous solutions

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38470-38482 ◽  
Author(s):  
Kosma Szutkowski ◽  
Żaneta Kołodziejska ◽  
Zuzanna Pietralik ◽  
Igor Zhukov ◽  
Andrzej Skrzypczak ◽  
...  
Keyword(s):  
High Resolution ◽  
Aqueous Solutions ◽  
Transition Region ◽  
Gemini Surfactants ◽  
Aggregation Behavior ◽  
Clear Distinction ◽  
Spacer Length ◽  
High Resolution Nmr ◽  
Dicationic Surfactants ◽  
Nmr Diffusometry

The aggregation behavior in the transition region was studied for a series of dicationic surfactants 3,3′-[α,ω-(dioxaalkane)]bis(1-dodecylimidazolium)dichlorides with varied spacer length from two to twelve carbon atoms.

High resolution NMR analysis of conformation transitions in aqueous solutions of gelatin

1982 ◽  
Vol 24 (9) ◽  
pp. 2182-2186 ◽  
Author(s):  
Ye.P. Naryshkina ◽  
V.Ya. Volkov ◽  
A.I. Dolinnyi ◽  
V.N. Izmailova
Keyword(s):  
High Resolution ◽  
Aqueous Solutions ◽  
Nmr Analysis ◽  
High Resolution Nmr ◽  
Conformation Transitions

The High Resolution NMR Spectra of Pesticides. II. The DDT-Type Compounds

1969 ◽  
Vol 52 (5) ◽  
pp. 1074-1092 ◽  
Author(s):  
L H Keith ◽  
A L Alford ◽  
A W Garrison
Keyword(s):  
Nuclear Magnetic Resonance ◽  
High Resolution ◽  
Nmr Spectra ◽  
Chemical Shifts ◽  
Coupling Constants ◽  
Aromatic Rings ◽  
Nuclear Magnetic Resonance Spectra ◽  
High Resolution Nmr ◽  
Related Compounds ◽  
Deshielding Effect

Abstract The high resolution nuclear magnetic resonance spectra of the DDT class of pesticides and related compounds are discussed, including a study of the resonances of the aromatic protons as they are affected by various substiluents. The CCl3 moiety on the α-carbon strongly deshields the ortho protons on the aromatic rings, and this deshielding effect is greatly enhanced by substitution of a chlorine ortho rather than para on the aromatic ring. These deshielding effects are explained by a consideration of the electronegativity of the substituents and the stereochemistry of the molecule. The chemical shifts and coupling constants are tabulated.

Determination of Tautomeric Preference of Fenobam in Solution by High Resolution NMR Spectroscopy

2020 ◽  
Author(s):  
Xuming Sha ◽  
Shaodong Chen ◽  
Xiaojing Zheng ◽  
Xin Ye ◽  
Hailu Zhang ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
High Resolution Nmr
Sign in / Sign up

Export Citation Format

Share Document