{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:38:22Z","timestamp":1760243902735,"version":"build-2065373602"},"reference-count":56,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2010,4,8]],"date-time":"2010-04-08T00:00:00Z","timestamp":1270684800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We report laser spectroscopic and computational studies of host\/guest hydration interactions between functional molecules (hosts) and water (guest) in supersonic jets. The examined hosts include dibenzo-18-crown-6-ether (DB18C6), benzo-18-crown-6-ether (B18C6) and calix[4]arene (C4A). The gaseous complexes between the functional molecular hosts and water are generated under jet-cooled conditions. Various laser spectroscopic methods are applied for these species: the electronic spectra are observed by laser-induced fluorescence (LIF), mass-selected resonance enhanced multiphoton ionization (REMPI) and ultraviolet-ultraviolet hole-burning (UV-UV HB) spectroscopy, whereas the vibrational spectra for each individual species are observed by infrared-ultraviolet double resonance (IR-UV DR) spectroscopy. The obained results are analyzed by first principles electronic structure calculations. We discuss the conformations of the host molecules, the structures of the complexes, and key interactions forming the specific complexes.<\/jats:p>","DOI":"10.3390\/s100403519","type":"journal-article","created":{"date-parts":[[2010,4,8]],"date-time":"2010-04-08T10:49:17Z","timestamp":1270723757000},"page":"3519-3548","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Structures and Encapsulation Motifs of Functional Molecules Probed by Laser Spectroscopic and Theoretical Methods"],"prefix":"10.3390","volume":"10","author":[{"given":"Ryoji","family":"Kusaka","sequence":"first","affiliation":[{"name":"Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima, 739-8526, Japan"}]},{"given":"Yoshiya","family":"Inokuchi","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima, 739-8526, Japan"}]},{"given":"Sotiris S.","family":"Xantheas","sequence":"additional","affiliation":[{"name":"Chemical & Materials Sciences Division, Pacific Northwest National Laboratory, 906 Battelle Boulevard, P.O. Box 999, MS K1-83, Richland, WA 99352, USA"}]},{"given":"Takayuki","family":"Ebata","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima, 739-8526, Japan"}]}],"member":"1968","published-online":{"date-parts":[[2010,4,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Gokel, G.W. (1991). Crown Ethers and Cryptands, Royal Society of Chemistry.","DOI":"10.1039\/9781788010917"},{"key":"ref_2","unstructured":"Dobler, M. (1981). Ionophores and their Structures, Wiley-Interscience."},{"key":"ref_3","unstructured":"Stoddart, J.F. (1989). Monographs in Supramolecular Chemistry, Royal Society of Chemistry."},{"key":"ref_4","unstructured":"Stoddart, J.F. (1994). Monographss in Supramolecular Chemistry, Royal Society of Chemistry."},{"key":"ref_5","unstructured":"Stoddart, J.F. (1998). 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