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IJC-A Vol.49A(12) [December 2010] >


Title: Molecular interactions in binary mixtures of 2-aminoethanol with 1,4-dioxane and dimethyl sulphoxide investigated by static permittivity measurements
Authors: Sengwa, R J
Khatri, Vinita
Choudhary, Shobhna
Keywords: Solution chemistry
Molecular interactions
Dielectric constants
Hydrogen bonded interactions
Aminoethanol
Dioxane
Dimethyl sulphoxide
Issue Date: Dec-2010
Publisher: NISCAIR-CSIR, India
Abstract: The relative static permittivity (dielectric constant) at 1 MHz and high frequency limit permittivity at wavelength of sodium-D line of the binary mixtures of 2-aminoethanol with 1,4-dioxane or dimethyl sulphoxide over the entire composition range have been investigated at 30 oC. The concentration dependent values of excess permittivity and Kirkwood correlation factor of the binary mixtures indicate the formation of hydrogen bonded molecular interactions between these unlike molecules, which modify the dipolar ordering of the self-associated structures of 2-amino¬≠ethanol molecules. 2-Aminoethanol forms 1:1 complexes with dimethyl sulphoxide with increase in number of effective parallel aligned dipoles, while with 1,4-dioxane it forms 2:1 stable adducts, which decrease in number of effective parallel aligned dipoles in their binary mixtures.
Page(s): 1612-1616
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.49A(12) [December 2010]

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