The Infrared Spectra of Some 1-(2-Thienyl)-3-and -4-Thiaalkanes

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Abstract:

The infrared spectra of six 1-(2-thienyl)-3-thiaalkanes and seven 1-(2-thienyl)-4-thiaalkanes (molecular weights from 186 to 270) were obtained for the 4000 to 400 cm−1 range. These spectra are compared with spectra of other thiophene ring compounds substituted in the 2-position for their characteristic absorption bands. The spectra agree with other spectra as to the major absorption band around 680 cm−1 and the 2-substitution overtone pattern. A method of distinguishing between the two groups of compounds from moderate peaks in the 600 to 500 cm−1 (KBr) region is shown. Interference from the 2-alkylthiophenes and the 1-(2-thienyl)-1-thiaalkanes does not occur.

Keywords: Infrared correlations; Infrared spectra; Sulfur compounds—petroleum; Thienylthiaalkanes; Thiophenic compounds

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702794925174

Affiliations: 1: Department of Chemistry, Texas Woman's University, Denton, Texas 76204 2: Department of Chemistry, Texas Woman's University, Denton, Texas 76204; present address: Richardson Independent School District, Richardson, TX 75081

Publication date: November 1, 1979

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