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Fourier Transform Infrared Matrix Isolation Study of Acetonitrile in Solid Argon

  • Hack Sung Kim (Department of Chemistry, Seoul National University) ;
  • Kwan Kim (Department of Chemistry, Seoul National University)
  • 발행 : 1992.10.20

초록

The intramolecular fundamental vibrations of $CH_3CN$ trapped in solid argon matrix have been reinvestigated by means of FT-IR spectroscopy in the spectral range of 4000-500 $cm^{-1}$. By employing a quantum detector, infrared spectra could be obtained at matrix to solute ratio of 10000, allowing the clarification of the peaks due to monomeric species more clearly. Temperature controlled diffusion was initiated to identify the dimeric and polymeric species in terms of difference spectra. The assignments of monomeric and dimeric species are found, in general, to agree with the earlier work performed at higher concentration (Ar/$CH_3CN$ = 1500) using a dispersive spectrometer. Nonetheless the difficulty of minute differences between the earlier infrared and Raman spectroscopic results could be resolved. Moreover, the previously unnotified peaks due to polymeric species have been identified.

키워드

참고문헌

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피인용 문헌

  1. Ab initio calculations of the structural, energetic, and vibrational properties of some hydrogen bonded and van der Waals dimers. Part 4. The acetonitrile dimer vol.84, pp.2, 1992, https://doi.org/10.1002/qua.1325
  2. Matrix-isolation pyrolysis investigation of mercapto-functionalized 1,3,4-thiadiazoles: thermal stability of thiadiazole lubricant additives vol.7, pp.5, 1992, https://doi.org/10.1039/b415019h
  3. Structure, Stability, and Generation of CH3CNS vol.63, pp.12, 1992, https://doi.org/10.1071/ch10303
  4. Generation and Spectroscopic Identification of Selenofulminic Acid and Its Methyl and Cyano Derivatives (XCNSe, X=H, CH3, NC) vol.18, pp.9, 1992, https://doi.org/10.1002/chem.201103004
  5. Photochemistry of a 1 : 1 hydrogen-bonded CH3CN : HCOOH complex under astrochemically-relevant conditions vol.16, pp.8, 1992, https://doi.org/10.1039/c3cp54041c
  6. Acetonitrile/sulfuric acid/water clusters: A matrix isolation infrared and computational study vol.1199, pp.None, 2020, https://doi.org/10.1016/j.molstruc.2019.126948