{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T07:44:43Z","timestamp":1790408683900,"version":"4.1.0"},"reference-count":44,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2024,4,11]],"date-time":"2024-04-11T00:00:00Z","timestamp":1712793600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"INFN Italy"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>We report a study on the hydrogen bonding mechanisms of three aliphatic alcohols (2-propanol, methanol, and ethanol) and one diol (ethylene glycol) in water solution using a time-domain ellipsometer in the THz region. The dielectric response of the pure liquids is nicely modeled by the generalized Debye\u2013Lorentz equation. For binary mixtures, we analyze the data using a modified effective Debye model, which considers H-bond rupture and reformation dynamics and the motion of the alkyl chains and of the OH groups. We focus on the properties of the water-rich region, finding anomalous behavior in the absorption properties at very low solute molar concentrations. These results, first observed in the THz region, are in line with previous findings from different experiments and can be explained by taking into account the amphiphilic nature of the alcohol molecules.<\/jats:p>","DOI":"10.3390\/ijms25084240","type":"journal-article","created":{"date-parts":[[2024,4,11]],"date-time":"2024-04-11T09:37:31Z","timestamp":1712828251000},"page":"4240","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Dielectric Response of Different Alcohols in Water-Rich Binary Mixtures from THz Ellipsometry"],"prefix":"10.3390","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1935-5034","authenticated-orcid":false,"given":"Zahra","family":"Mazaheri","sequence":"first","affiliation":[{"name":"Department of Physics \u201cE. Pancini\u201d, University of Naples \u201cFederico II\u201d, Complesso MSA, 80126 Naples, Italy"},{"name":"Naples Research Unit, National Institute for Nuclear Physics (INFN), Complesso MSA, 80126 Naples, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2368-0064","authenticated-orcid":false,"given":"Gian Paolo","family":"Papari","sequence":"additional","affiliation":[{"name":"Department of Physics \u201cE. Pancini\u201d, University of Naples \u201cFederico II\u201d, Complesso MSA, 80126 Naples, Italy"},{"name":"Naples Research Unit, National Institute for Nuclear Physics (INFN), Complesso MSA, 80126 Naples, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6603-8162","authenticated-orcid":false,"given":"Antonello","family":"Andreone","sequence":"additional","affiliation":[{"name":"Department of Physics \u201cE. Pancini\u201d, University of Naples \u201cFederico II\u201d, Complesso MSA, 80126 Naples, Italy"},{"name":"Naples Research Unit, National Institute for Nuclear Physics (INFN), Complesso MSA, 80126 Naples, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,4,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.jcat.2012.01.011","article-title":"Solvent effects in the hydrogenation of 2-butanone","volume":"289","author":"Akpa","year":"2012","journal-title":"J. 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