Calculation of the rotation barrier of end groups of a cumulative system

1964 ◽  
Vol 5 (1) ◽  
pp. 141-142
Author(s):  
N. A. Popov
Keyword(s):  
Rotation Barrier ◽  
End Groups ◽  
Cumulative System

Rotationsbarriere der Endgruppen bei Poly- methinoxonolen verschiedener Kettenlänge / Rotation Barrier of the End Groups of Polymethine Oxonols with Different Chain Lengths

1976 ◽  
Vol 31 (8) ◽  
pp. 1017-1018 ◽  
Author(s):  
H. Oehling ◽  
F. Baer
Keyword(s):  
Nmr Spectra ◽  
Rotation Barrier ◽  
Free Enthalpy ◽  
Temperature Dependent ◽  
Restricted Rotation ◽  
H Nmr ◽  
Enthalpy Of Activation ◽  
End Groups ◽  
Electron Contribution ◽  
Chain Lengths

Abstract Polymethine oxonols show temperature dependent 1H-NMR-spectra because of restricted rotation of the end groups. The dependence of the value of the corresponding free enthalpy of activation AGt on the length of the poly-methine chain can be explained by the change of the π-electron contribution to ⊿G≠.

Photoyellowing behavior of non-phenolic lignin models representative of end groups and β-ether structures

2004 ◽  
Vol 19 (2) ◽  
pp. 146-154
Author(s):  
Jim Parkås ◽  
Magnus Paulsson ◽  
Shiming Li ◽  
Knut Lundquist ◽  
Ulla Westermark
Keyword(s):  
End Groups

Synthesis, Characterization, and Dynamic Behavior of Well-defined Dithiomaleimide-functionalized Maltodextrins

2020 ◽  
Vol 17 (2) ◽  
pp. 85-89
Author(s):  
Francisco J. Hidalgo ◽  
Nathan A.P. Lorentz ◽  
TinTin B. Luu ◽  
Jonathan D. Tran ◽  
Praveen D. Wickremasinghe ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Dynamic Behavior ◽  
Industrial Applications ◽  
19F Nmr ◽  
Nmr Studies ◽  
Synthetic Pathway ◽  
End Groups ◽  
Sugar End

: Maltodextrins have an increasing number of biomedical and industrial applications due to their attractive physicochemical properties such as biodegradability and biocompatibility. Herein, we describe the development of a synthetic pathway and characterization of thiol-responsive maltodextrin conjugates with dithiomaleimide linkages. 19F NMR studies were also conducted to demonstrate the exchange dynamics of the dithiomaleimide-functionalized sugar end groups.

scholarly journals THE COMPOSITION AND AMINO ACID END-GROUPS OF GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASES

1953 ◽  
Vol 203 (2) ◽  
pp. 575-582 ◽  
Author(s):  
Sidney F. Velick ◽  
Sidney Udenfriend
Keyword(s):  
Amino Acid ◽  
End Groups

scholarly journals Nucleoside Triphosphates as Precursors of Ribonucleic Acid End Groups in a Mammalian System

1958 ◽  
Vol 233 (4) ◽  
pp. 954-963 ◽  
Author(s):  
Liselotte I. Hecht ◽  
Paul C. Zamecnik ◽  
Mary L. Stephenson ◽  
Jesse F. Scott
Keyword(s):  
Ribonucleic Acid ◽  
Nucleoside Triphosphates ◽  
End Groups ◽  
Mammalian System

Effects of Halogenated End Groups on the Performance of Nonfullerene Acceptors

2021 ◽  
Vol 13 (5) ◽  
pp. 6147-6155
Author(s):  
Daize Mo ◽  
Hui Chen ◽  
Yulin Zhu ◽  
Hsin-Hsiang Huang ◽  
Pengjie Chao ◽  
...  
Keyword(s):  
End Groups
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