{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T07:54:19Z","timestamp":1791446059931,"version":"4.3.3"},"reference-count":63,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T00:00:00Z","timestamp":1791417600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T00:00:00Z","timestamp":1791417600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry A European J"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Axially chiral [12]cycloparaarylenes\n                    <jats:bold>1<\/jats:bold>\n                    and\n                    <jats:bold>2<\/jats:bold>\n                    , consisting of three each of 1,1\u2032\u2010binaphthyl and biphenyl units, were synthesized. Their characteristics were distinct from those of [12]cycloparaphenylene and depended on whether the 2,2\u2032\u2010substituents on the binaphthyls were methoxy groups or a methylenedioxy bridge.\n                    <jats:bold>1<\/jats:bold>\n                    with methoxy groups adopted a\n                    <jats:italic>D<\/jats:italic>\n                    <jats:sub>3<\/jats:sub>\n                    \u2010symmetric structure with\n                    <jats:italic>transoid<\/jats:italic>\n                    binaphthyls, whereas\n                    <jats:bold>2<\/jats:bold>\n                    with methylenedioxy groups existed as an equilibrium mixture of\n                    <jats:italic>C<\/jats:italic>\n                    <jats:sub>3<\/jats:sub>\n                    \u2010 and\n                    <jats:italic>C<\/jats:italic>\n                    <jats:sub>1<\/jats:sub>\n                    \u2010symmetric structures with\n                    <jats:italic>cisoid<\/jats:italic>\n                    binaphthyls. This difference arises from modulation in binaphthyl dihedral angles and the intrinsic preference of cycloparaarylenes (CPAs) for cylindrical arene arrangements.\n                    <jats:bold>1<\/jats:bold>\n                    displayed strong aggregation\u2010induced emission enhancement (AIEE) with\n                    <jats:italic>\u03a6<\/jats:italic>\n                    <jats:sub>fl<\/jats:sub>\n                    of 0.85 at 5\u00b0C and blue emission in the solid state.\n                    <jats:bold>2<\/jats:bold>\n                    showed weaker but more redshifted AIEE and solid\u2010state green emission. Trifluoroacetic acid molecules stabilized the highly symmetric conformations of\n                    <jats:bold>1<\/jats:bold>\n                    in the excited state, leading to a ninefold enhancement in fluorescence (FL) and intense circularly polarized luminescence (CPL) with |\n                    <jats:italic>g<\/jats:italic>\n                    <jats:sub>lum<\/jats:sub>\n                    | of 0.028 and\n                    <jats:italic>B<\/jats:italic>\n                    <jats:sub>CPL<\/jats:sub>\n                    of 820 M\n                    <jats:sup>\u22121<\/jats:sup>\n                    cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    at \u221260\u00b0C.\n                  <\/jats:p>","DOI":"10.1002\/chem.71771","type":"journal-article","created":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T07:19:13Z","timestamp":1791443953000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Chiral Cycloparaarylenes Incorporating Binaphthyl Units: Dramatic Effects of Peripheral Functionalization on (Chir)Optical Properties"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4979-7375","authenticated-orcid":false,"given":"Kazuto","family":"Takaishi","sequence":"first","affiliation":[{"name":"Graduate School of Environmental, Life, Natural Science and Technology Okayama University  Tsushima Okayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kotaro","family":"Nakahara","sequence":"additional","affiliation":[{"name":"Graduate School of Environmental, Life, Natural Science and Technology Okayama University  Tsushima Okayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kasumi","family":"Nishiyama","sequence":"additional","affiliation":[{"name":"Graduate School of Environmental, Life, Natural Science and Technology Okayama University  Tsushima Okayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2160-6840","authenticated-orcid":false,"given":"Tadashi","family":"Ema","sequence":"additional","affiliation":[{"name":"Graduate School of Environmental, Life, Natural Science and Technology Okayama University  Tsushima Okayama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,8]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"crossref","first-page":"2221","DOI":"10.1039\/C4CS00366G","article-title":"Cycloparaphenylenes and Related Nanohoops","volume":"44","author":"Lewis S. 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