Conformational analysis and dipole moments of tetra-O-methyl-(+)-catechin and tetra-O-methyl-(-)-epicatechin

1982 ◽  
Vol 104 (12) ◽  
pp. 3359-3362 ◽  
Author(s):  
Wayne L. Mattice ◽  
Fred L. Tobiason ◽  
Karl Houglum ◽  
Armen Shanafelt
Keyword(s):  
Conformational Analysis ◽  
Dipole Moments

Polarity and structure of derivatives of bis(2-phenylethyl)selenophosphinic acid

2017 ◽  
Vol 89 (3) ◽  
pp. 393-401 ◽  
Author(s):  
Yana Vereshchagina ◽  
Rezeda Khanafieva ◽  
Denis Chachkov ◽  
Eleonora Ishmaeva ◽  
Svetlana Malysheva ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Conformational Analysis ◽  
Density Functional ◽  
Conformational Equilibrium ◽  
Dipole Moments ◽  
Density Functional Theory Calculations ◽  
Functional Theory ◽  
Derivatives Of

AbstractConformational analysis of derivatives of bis(2-phenylethyl)selenophosphinic acid was carried out by the method of dipole moments and density functional theory calculations. The conformations of the examined compounds fit into the overall conformational picture for the PIV compounds: these derivatives exist as conformational equilibrium of non-eclipsed gauche and trans forms with propeller arrangement of the substituents relative to the P=Se bond. We stipulate that the eclipsed cis orientation of substituent may be caused by the formation of H-contact.

Dipole moments and conformational analysis of tris(2-pyridyl)phosphine and tris(2-pyridyl)phosphine chalcogenides. Experimental and theoretical study

2014 ◽  
Vol 1076 ◽  
pp. 285-290 ◽  
Author(s):  
Yana A. Vereshchagina ◽  
Denis V. Chachkov ◽  
Alsu Z. Alimova ◽  
Svetlana F. Malysheva ◽  
Nina K. Gusarova ◽  
...  
Keyword(s):  
Conformational Analysis ◽  
Theoretical Study ◽  
Dipole Moments ◽  
Phosphine Chalcogenides
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