scholarly journals Role of Backbone Dipole Interactions in the Formation of Secondary and Supersecondary Structures of Proteins

2014 ◽  
Vol 10 (6) ◽  
pp. 2569-2576 ◽  
Author(s):  
Sai J. Ganesan ◽  
S. Matysiak
Keyword(s):  
Dipole Interactions

The leading role of the steric hindrance effect and dipole–dipole interaction in superlattice nanostructures formed via the assembly of discotic liquid crystals

2018 ◽  
Vol 42 (24) ◽  
pp. 20087-20094 ◽  
Author(s):  
Zhenhu Zhang ◽  
Huanzhi Yang ◽  
Jingze Bi ◽  
Ao Zhang ◽  
Yi Fang ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Steric Hindrance ◽  
Dipole Interaction ◽  
Discotic Liquid Crystals ◽  
Leading Role ◽  
Dipole Interactions

The effect of steric hindrance and dipole–dipole interactions are a prerequisite for the formation of ordered plastic phases.

Role of the gauche effect and local 1,3-dipole–dipole interactions in stabilizing an unusual conformation of tartarodinitriles

2008 ◽  
Vol 64 (4) ◽  
pp. 497-503 ◽  
Author(s):  
Urszula Rychlewska ◽  
Natalia Waścinska ◽  
Beata Warżajtis ◽  
Jacek Gawroński
Keyword(s):  
Hydrogen Bonds ◽  
Tartaric Acid ◽  
Conformational Equilibrium ◽  
Carbon Chain ◽  
Dipolar Interactions ◽  
Nmr Studies ◽  
X Ray ◽  
Gauche Effect ◽  
Dipole Interactions

This paper reports the synthesis, X-ray and NMR investigations of chiral and meso dinitriles of tartaric acid (tartarodinitriles) and their O,O′-diacetyl and O,O′-dibenzoyl derivatives. While in chiral tartaric acid its esters and NH amides the four-atom carbon chain is overwhelmingly trans, it is gauche in chiral tartarodinitriles. Conversely, meso-tartaric acid, its esters and amides display a tendency for the gauche conformation, but meso-tartarodinitriles usually have the trans conformation. The NMR studies of tartarodinitriles reveal the presence of a conformational equilibrium in solution with a preference for those conformers found in crystals. The gauche conformation of meso-tartarodinitriles seems to be stabilized by local dipolar interactions, intramolecular C—H...O hydrogen bonds and by a tendency for maximization of the gauche effect, the latter effect also operating in chiral tartarodinitriles. Stabilization of the trans conformers of tartarodinitriles in the crystals seems to originate from specific intermolecular interactions.

The role of the exchange and magnetic dipole interactions in the superconductors with helical magnetic ordering

1981 ◽  
Vol 40 (6) ◽  
pp. 683-686 ◽  
Author(s):  
L.N. Bulaevskii ◽  
A.I. Buzdin ◽  
S.V. Panjukov ◽  
A.I. Rusinov
Keyword(s):  
Magnetic Dipole ◽  
Magnetic Ordering ◽  
Dipole Interactions
Sign in / Sign up

Export Citation Format

Share Document