scholarly journals Distributions of restricted rotation distances

2021 ◽  
pp. 1-16
Author(s):  
Sean Cleary ◽  
Haris Nadeem
Keyword(s):  
Restricted Rotation

1H NMR studies of [N-MeAib1, Tyr(Me)4]ANGII and [N-MeAib1, Tyr(Me)4, Ile8]ANGII in dimethylsulfoxide by nuclear Overhauser effect (NOE) enhancement spectroscopy: cis-trans Isomerism of the His-Pro bond

1990 ◽  
Vol 55 (4) ◽  
pp. 1106-1111 ◽  
Author(s):  
John Matsoukas ◽  
Paul Cordopatis ◽  
Raghav Yamdagni ◽  
Graham J. Moore
Keyword(s):  
1H Nmr ◽  
Nuclear Overhauser Effect ◽  
Nmr Studies ◽  
Restricted Rotation ◽  
Overhauser Effect ◽  
Major Isomer ◽  
Conformational Properties ◽  
Nuclear Overhauser

The conformational properties of the Sarmesin analogues [N-MeAib1, Tyr(Me)4]ANGII and [N-MeAib1, Tyr(Me)4, Ile8]ANGII in hexadeutero-dimethysulfoxide were investigated by Nuclear Overhauser Effect (NOE) Enhancement Studies. Cis-trans isomers (ratio 1 : 6) due to restricted rotation of the His-Pro bond were observed. Interresidue interactions between the His Cα proton and the two Pro Cδ protons revealed that the major isomer was the trans.

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≠.

Solvent Programmable Polymers Based on Restricted Rotation

2009 ◽  
Vol 131 (34) ◽  
pp. 12062-12063 ◽  
Author(s):  
Yagang Zhang ◽  
Judith M. Lavin ◽  
Ken D. Shimizu
Keyword(s):  
Restricted Rotation

Restricted rotation in methyldithiomethyl radical, CH3SS.ovrhdot.CH2

1982 ◽  
Vol 47 (7) ◽  
pp. 1367-1368 ◽  
Author(s):  
Lodovico Lunazzi ◽  
Giuseppe Placucci ◽  
Loris Grossi
Keyword(s):  
Restricted Rotation

Synthesis and Pharmacology of Site-Specific Cocaine Abuse Treatment Agents:  Restricted Rotation Analogues of Methylphenidate

2007 ◽  
Vol 50 (11) ◽  
pp. 2718-2731 ◽  
Author(s):  
Deog-Il Kim ◽  
Howard M. Deutsch ◽  
Xiaocong Ye ◽  
Margaret M. Schweri
Keyword(s):  
Cocaine Abuse ◽  
Site Specific ◽  
Restricted Rotation ◽  
Abuse Treatment
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