JOURNAL ARTICLE

Experimental determination of the relationship between S=O bond length and its stretching frequency of the DMSO molecule.

  • Published In: Bulletin of the Chemical Society of Japan, 2024, v. 97, n. 11. P. 1 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Kameda, Yasuo; Oshita, Yuto; Amo, Yuko; Usuki, Takeshi; Watanabe, Hikari; Umebayashi, Yasuhiro; Ikeda, Kazutaka; Honda, Takashi; Otomo, Toshiya 3 of 3

Abstract

This article focuses on establishing the relationship between the intramolecular sulfur-oxygen (S=O) bond length (r_SO) and its stretching vibrational frequency (ν_SO) in dimethylsulfoxide (DMSO) molecules in various phases and solutions. Using time-of-flight (TOF) neutron diffraction, x-ray diffraction, and attenuated total reflection infrared (ATR-IR) spectroscopy, the study measured r_SO and ν_SO values for pure deuterated DMSO and concentrated lithium and nickel salt solutions in DMSO. The results demonstrate a linear correlation between ν_SO and r_SO across gaseous, liquid, and solid states, as well as in metal-coordinated DMSO complexes, with a slope of dν_SO/dr_SO = −3,600 ± 400 cm⁻¹·Å⁻¹. This finding indicates that the S=O bond length in DMSO sensitively reflects the strength of intermolecular interactions in its environment.

Additional Information

  • Source:Bulletin of the Chemical Society of Japan. 2024/11, Vol. 97, Issue 11, p1
  • Document Type:Article
  • Subject Area:Physics
  • Publication Date:2024
  • ISSN:00092673
  • DOI:10.1093/bulcsj/uoae120
  • Accession Number:181196177
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