NDLI: Volumetric Properties of l-Alanine and l-Serine in Aqueous N,N-Dimethylformamide Solutions at 298.15 K

Content Provider	SpringerLink
Author	Liu, Chunli Zhou, Li Ma, Lin Lin, Ruisen
Copyright Year	2013
Abstract	The densities of l-alanine and l-serine in aqueous solutions of N,N-dimethylformamide (DMF) have been measured at 298.15 K with an Anton Paar Model 55 densimeter. Apparent molar volumes $$ (V_{\phi } ) $$ , standard partial molar volumes $$ (V_{\phi }^{0} ) $$ , standard partial molar volumes of transfer $$ (Δ_{\text{tr}} V_{\phi }^{0} ) $$ and hydration numbers have been determined for the amino acids. The $$ Δ_{\text{tr}} V_{\phi }^{0} $$ values of l-serine are positive which suggest that hydrophilic–hydrophilic interactions between l-serine and DMF are predominant. The –CH$_{3}$ group of l-alanine has much more influence on the volumetric properties and the $$ Δ_{\text{tr}} V_{\phi }^{0} $$ have smaller negative values. The results have been interpreted in terms of the cosphere overlap model.
Starting Page	1572
Ending Page	1579
Page Count	8
File Format	PDF
ISSN	00959782
Journal	Journal of Solution Chemistry
Volume Number	42
Issue Number	8
e-ISSN	15728927
Language	English
Publisher	Springer US
Publisher Date	2013-08-14
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	l-Alanine l-Serine DMF Standard partial molar volumes of transfer Hydration number Physical Chemistry Industrial Chemistry/Chemical Engineering Geochemistry Oceanography Inorganic Chemistry Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Molecular Biology Biochemistry Physical and Theoretical Chemistry Biophysics

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