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KMID : 1059519850290060599
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Journal of the Korean Chemical Society
1985 Volume.29 No. 6 p.599 ~ p.607
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Near-IR Spectroscopic Studies of the Hydrogen Bonding between Thioacetamide and N,N-Dimethylpropionamide in Carbon Tetrachloride
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Kim Byung-Chul
Song Kyu-Seok
Kim Keon
Choi Young-Sang
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Abstract
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Near-ir spectra have been obtained for the ν3 + Amide Ⅱ combination thioacetamide(TA) band in CCl4 and TA-DMP in CCl4 in the range of 5 to 55℃. Absorbance of the weak bands of the DMP and solvent has been compensated. The spectra are analyzed by the computer resolution into two Lorentzian-Gaussian product bands which have been identified with monomeric TA and 1 : 1 TA-DMP complex. Equilibrium constants and thermodynamic parameters for the hydrogen bonding between TA and DMP have been evaluated by the analysis of the concentration and temperature dependent spectra for the very dilute CCl4 solutions. The ΔH° and ΔS°of TA and DMT have been found to be -14.6 kJmol-1 and -16.2 Jmol-1 deg-1.
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KEYWORD
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