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Compound <jats:bold>1<\/jats:bold> is a liquid at room temperature; in water, limited self\u2010aggregation occurred at high concentrations as deduced from diffusion NMR and dynamic light scattering. Compound <jats:bold>1<\/jats:bold> forms pseudo\u2010rotaxane\u2010like 1\u2009:\u20091 host\u2010guest complexes with 1,\u03c9\u2010di\u2010substituted alkanes with association constants on the order of 10<jats:sup>3<\/jats:sup>\u201310<jats:sup>4<\/jats:sup>\u2005<jats:sc>m<\/jats:sc><jats:sup>\u22121<\/jats:sup>. Interestingly, NMR experiments showed that the guest location relative to the host ring system differs among the different complexes. In proof\u2010of\u2010concept experiments, compound <jats:bold>1<\/jats:bold> was shown to extract structurally related organic compounds from benzene into water with significant selectivity. Compound <jats:bold>1<\/jats:bold>, which is a liquid at room temperature and has only limited interactions with its side arms, can, in principle, be regarded as a complement to or as a kind of type I porous liquid.<\/jats:p>","DOI":"10.1002\/open.202100206","type":"journal-article","created":{"date-parts":[[2021,11,3]],"date-time":"2021-11-03T08:06:50Z","timestamp":1635926810000},"page":"1111-1115","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Aggregation Mode, Host\u2010Guest Chemistry in Water, and Extraction Capability of an Uncharged, Water\u2010Soluble, Liquid Pillar[5]arene Derivative"],"prefix":"10.1002","volume":"10","author":[{"given":"Inbar","family":"Horin","sequence":"first","affiliation":[{"name":"School of Chemistry, Sackler Faculty of Exact Sciences Tel Aviv University Ramat Aviv  69978 Tel Aviv Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ori","family":"Shalev","sequence":"additional","affiliation":[{"name":"School of Chemistry, Sackler Faculty of Exact Sciences Tel Aviv University Ramat Aviv  69978 Tel Aviv Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9442-8547","authenticated-orcid":false,"given":"Yoram","family":"Cohen","sequence":"additional","affiliation":[{"name":"School of Chemistry, Sackler Faculty of Exact Sciences Tel Aviv University Ramat Aviv  69978 Tel Aviv Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,11,3]]},"reference":[{"key":"e_1_2_2_1_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.198810211"},{"key":"e_1_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.198810093"},{"key":"e_1_2_2_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.198800891"},{"key":"e_1_2_2_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201703216"},{"key":"e_1_2_2_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201703216"},{"key":"e_1_2_2_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201702992"},{"key":"e_1_2_2_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201702992"},{"key":"e_1_2_2_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201702979"},{"key":"e_1_2_2_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201702979"},{"key":"e_1_2_2_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/9780470511459"},{"key":"e_1_2_2_8_1","first-page":"1","volume-title":"Supramolecular Chemistry: From Molecules to Nanomaterials","author":"Steed J. 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