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A template\u2010free, one\u2010step synthesis affords a series of methylene\u2010bridged macrocyclic oligo\u2010BODIPYs from readily available BODIPY precursors. Br\u00f8nsted acid catalysis with paraformaldehyde as a C\n                    <jats:sub>1<\/jats:sub>\n                    synthon links multiple BODIPY cores into\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2010connected linear oligomers and macrocycles comprising up to twelve non\u2010conjugated chromophores. Optical spectroscopy and quantum chemical calculations provide initial insights into the photophysical mechanisms: steady\u2010state and time\u2010resolved spectroscopy reveal pronounced excitonic coupling across the chromophore arrays, which is confirmed by quantum chemical investigations at the simplified time\u2010dependent density functional theory level. The linear oligomers display typical J\u2010type characteristics, while the macrocyclic systems exhibit distinct multiband emission and unusual size\u2010dependent photophysical properties. Distinct excitonic regimes seem to coexist in the macrocyclic oligomers. Intense absorption bands are consistent with localized J\u2010coupled chromophore segments within the ring, while fluorescence can occur from J\u2010coupled segments and a lower\u2010lying cyclic exciton state with strongly reduced oscillator strength. In summary, our work establishes cyclic oligo\u2010BODIPYs as a versatile platform for investigating topology\u2010dependent excitonic phenomena, and also for developing functional superchromophores with tunable photophysical properties.\n                  <\/jats:p>","DOI":"10.1002\/anie.5624001","type":"journal-article","created":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T06:08:00Z","timestamp":1791439680000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["One\u2010Step Access to Ultra\u2010Bright Macrocyclic Oligo\u2010BODIPYs Featuring Long\u2010Lived Cyclic Excitons"],"prefix":"10.1002","author":[{"given":"Lukas J.","family":"Patalag","sequence":"first","affiliation":[{"name":"Institute of Organic Chemistry Albert\u2010Ludwigs\u2010Universit\u00e4t Freiburg  Freiburg 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Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3256-7995","authenticated-orcid":false,"given":"Yuriy","family":"Kononevich","sequence":"additional","affiliation":[{"name":"Institute of Organic Chemistry Albert\u2010Ludwigs\u2010Universit\u00e4t Freiburg  Freiburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8493-7225","authenticated-orcid":false,"given":"Nils","family":"van Staalduinen","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry RWTH Aachen University  Aachen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter G.","family":"Jones","sequence":"additional","affiliation":[{"name":"Institute of Inorganic and Analytical Chemistry Technische Universit\u00e4t Braunschweig  Braunschweig Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6952-7391","authenticated-orcid":false,"given":"Andreas","family":"Steffen","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Chemical Biology (Inorganic Chemistry) Technische Universit\u00e4t Dortmund  Dortmund Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8598-5499","authenticated-orcid":false,"given":"Thorben","family":"Cordes","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Chemical Biology (Biophysical Chemistry) Technische Universit\u00e4t Dortmund  Dortmund Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3242-496X","authenticated-orcid":false,"given":"Christoph","family":"Bannwarth","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry RWTH Aachen University  Aachen 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in the triclinic space groupP(\u20101) witha= 15.342(1) b= 16.699(1) c= 20.750(1) \u00c5 a = 70.36(1) b = 73.48(1) g = 86.35(1)\u00b0 andZ= 1 corresponding to formal crystallographic inversion symmetry. Data were collected at 100 K using mirror\u2010focussed CuK\u03b1radiation. Although the structure was solved satisfactory refinement proved impossible because the asymmetric unit contains at least six molecules of chlorinated solvent (mostly CHCl3) all with highUvalues and several regions of large difference peaks up to 8 e\/\u00c53 probably corresponding to further disordered solvent. At this stage (isotropic refinement hydrogen atoms not included) the R1 value was 0.37 with wR2 0.74. We are confident that the structure is qualitatively correct but an acceptable structure refinement seems unlikely (there is too much solvent for routines that mathematically \u201cremove\u201d the solvent). The atomic coordinates are however included in the Supporting Information."},{"key":"e_1_2_8_66_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.comptc.2014.02.023"},{"key":"e_1_2_8_67_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.464304"},{"key":"e_1_2_8_68_1","doi-asserted-by":"publisher","DOI":"10.1039\/b508541a"},{"key":"e_1_2_8_69_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp9716997"},{"key":"e_1_2_8_70_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp047289h"},{"key":"e_1_2_8_71_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.3663856"}],"container-title":["Angewandte Chemie International Edition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/anie.5624001","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/anie.5624001","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/anie.5624001","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T06:08:03Z","timestamp":1791439683000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/anie.5624001"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,10,7]]},"references-count":70,"alternative-id":["10.1002\/anie.5624001"],"URL":"https:\/\/doi.org\/10.1002\/anie.5624001","archive":["Portico"],"relation":{},"ISSN":["1433-7851","1521-3773"],"issn-type":[{"value":"1433-7851","type":"print"},{"value":"1521-3773","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,10,7]]},"assertion":[{"value":"2026-07-07","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-09-17","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-10-07","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e5624001"}}