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Overtone spectra of 2-mercaptoethanol and 1,2-ethanedithiol.

The journal of physical chemistry. A (2010-11-12)
Benjamin J Miller, Mivsam Yekutiel, A Helena Sodergren, Daryl L Howard, Meghan E Dunn, Veronica Vaida, Henrik G Kjaergaard
ZUSAMMENFASSUNG

Vibrational spectra of vapor-phase 1,2-ethanedithiol and 2-mercaptoethanol were recorded to investigate weak intramolecular interactions. The spectra were recorded with conventional absorption spectroscopy and laser photoacoustic spectroscopy in the 2000-11,000 cm(-1) region. The room temperature spectra of each molecule are complicated by contributions from several conformers. Anharmonic oscillator local-mode calculations of the OH- and SH-stretching transitions have been performed to facilitate assignment of the different conformers in the spectra. We observe evidence of hydrogen-bond-like interactions from OH to S, but not from SH to O or S. The OH to S intramolecular interaction in 2-mercaptoethanol is weak and comparable to that found in the OH to O interaction in ethylene glycol.

MATERIALIEN
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Produktbeschreibung

Sigma-Aldrich
1,2-Ethandithiol, technical grade, ≥90%
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100 mL
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66,00 CHF
500 mL
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123,00 CHF
1 L
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199,00 CHF
6 x 100 mL
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326,00 CHF
Sigma-Aldrich
1,2-Ethandithiol, ≥98.0% (GC)
Anmeldenzur Ansicht organisationsspezifischer und vertraglich vereinbarter Preise
SKUPackungsgrößeVerfügbarkeitPreisMenge
100 mL
Auf Lager
Details...
66,00 CHF
500 mL
Auf Lager
Details...
123,00 CHF
1 L
Auf Lager
Details...
199,00 CHF
6 x 100 mL
Auf Lager
Details...
326,00 CHF