Fluid structure and molecular interaction of acetophenone derivatives |
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Authors: | K K Gupta P J Singh |
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Institution: | (1) Department of Physics, Government MSJ (PG) College, 321 001 Bharatpur, India |
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Abstract: | Dielectric constants of the binary mixtures of acetophenone,p-chloroaceto-phenone,p-methylacetophenone ando-hydroxyacetophenone in dilute solutions of benzene and 1,4-dioxane were measured at 303 K and at frequency 100 kHz. The low
frequency molecular dynamics of acetophenone and its derivatives have been studied by evaluating the Kirkwood correlation
factorg, molar polarizationP
2, excess correlation factor δg and excess free energy ΔG. The dipolar contribution to excess free energy of mixing arising from long-range electrostatic interaction and short-range
interaction between identical molecules has been assessed separately. The presence of α- and β-multimers in the above systems was identified. The results have been used to interpret the fluid structure in such
mixtures. |
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Keywords: | Kirkwood correlation factor molar polarization short-range interaction excess free energy α - andβ -multimers |
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