CONTRIBUTIONS FROM THE STUDY OF DIPOLE MOMENTS TO THE PROBLEMS OF ORGANIC CHEMISTRY*

1936 ◽  
Vol 1 (1) ◽  
pp. 17-30 ◽  
Author(s):  
CHARLES P. SMYTH
Keyword(s):  
Organic Chemistry ◽  
Dipole Moments

scholarly journals Conformational preferences of fluorine-containing agrochemicals and their implications for lipophilicity prediction

2020 ◽  
Vol 16 ◽  
pp. 2469-2476
Author(s):  
Daniela Rodrigues Silva ◽  
Joyce K Daré ◽  
Matheus P Freitas
Keyword(s):  
Organic Chemistry ◽  
Partition Coefficients ◽  
Molecular Conformation ◽  
Dipole Moments ◽  
Biological Properties ◽  
Molecular Dipole ◽  
Conformational Preferences ◽  
Environmental Properties ◽  
Physicochemical And Biological Properties ◽  
Lipophilicity Prediction

Molecular polarity governs lipophilicity, which in turn determines important agrochemical and environmental properties, such as soil sorption and bioconcentration of organic compounds. Since the C–F bond is the most polar in organic chemistry, the orientation of fluorine substituents originating from the rotation around C–C(F) bonds should affect the polarity and, consequently, the physicochemical and biological properties of fluorine-containing agrochemicals. Accordingly, this study aims to determine the most likely conformers of some fluorine-containing agrochemicals and to correlate their molecular dipole moments with the respective n-octanol/water partition coefficients (log P), in order to investigate the dependence of the lipophilicity with the molecular conformation.

scholarly journals Conformational Preferences of Fluorine-Containing Agrochemicals and their Implications for Lipophilicity Prediction

2020 ◽  
Author(s):  
Daniela R Silva ◽  
Joyce K Daré ◽  
Matheus P Freitas
Keyword(s):  
Organic Chemistry ◽  
Partition Coefficients ◽  
Molecular Conformation ◽  
Dipole Moments ◽  
Biological Properties ◽  
Molecular Dipole ◽  
Conformational Preferences ◽  
Environmental Properties ◽  
Physicochemical And Biological Properties ◽  
Lipophilicity Prediction

Molecular polarity governs lipophilicity, which in turn determines important agrochemical and environmental properties, such as soil sorption and bioconcentration of organic compounds. Since the C–F bond is the most polar in organic chemistry, the orientation of fluorine substituents originated from the rotation around C–C(F) bonds should affect the polarity and, consequently, the physicochemical and biological properties of fluorine-containing agrochemicals. Accordingly, this study aims to determine the most-likely conformers of some fluorine-containing agrochemicals and correlate their molecular dipole moments with the respective n-octanol/water partition coefficients (log P), in order to investigate the dependence of the lipophilicity with the molecular conformation.

scholarly journals Four Decades of Organic Chemistry of closo-Boranes: A Synthetic Toolbox for Constructing Liquid Crystal Materials. A Review

1999 ◽  
Vol 64 (6) ◽  
pp. 895-926 ◽  
Author(s):  
Piotr Kaszynski
Keyword(s):  
Organic Chemistry ◽  
Liquid Crystal ◽  
Functional Groups ◽  
Liquid Crystalline ◽  
Dipole Moments ◽  
Organic Functional Groups ◽  
Liquid Crystal Materials

Introduction and transformations of organic functional groups to ten- and twelve-vertex closo-boranes and heteroboranes is reviewed in the context of preparation of liquid crystalline compounds. The review, containing 198 references, is designed as a synthetic manual for materials chemists and focuses on methods for engineering molecules with elongated shapes and variable dipole moments. Several underdeveloped aspects of closo-borane chemistry are identified.

Dipole Moments in Organic Chemistry

1970 ◽  
Author(s):  
Vladimir I. Minkin ◽  
Osip A. Osipov ◽  
Yurii A. Zhdanov
Keyword(s):  
Organic Chemistry ◽  
Dipole Moments
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