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Notably, this approach enables synthesis of the building blocks and COF along parallel reaction landscapes, on a similar timeframe. The use of fragmental building block components, namely pyrene dione diboronic acid as aggregation\u2010inducing COF precursor and the diamines <jats:italic>o<\/jats:italic>\u2010phenylenediamine (Ph), 2,3\u2010diaminonaphthalene (Naph), or (1<jats:italic>R<\/jats:italic>,2<jats:italic>R<\/jats:italic>)\u2010(+)\u20101,2\u2010diphenylethylenediamine (2Ph) as extending functionalization units in conjunction with 2,3,6,7,10,11\u2010hexahydroxytriphenylene, resulted in the formation of the corresponding pyrene\u2010fused azaacene, i.e., Aza\u2010COF series with full conversion of the dione moiety, long\u2010range order, and high surface area. In addition, the novel three\u2010component synthesis was successfully applied to produce highly crystalline, oriented thin films of the Aza\u2010COFs with nanostructured surfaces on various substrates. The Aza\u2010COFs exhibit light absorption maxima in the blue spectral region, and each Aza\u2010COF presents a distinct photoluminescence profile. Transient absorption measurements of Aza\u2010Ph\u2010 and Aza\u2010Naph\u2010COFs suggest ultrafast relaxation dynamics of excited\u2010states within these COFs.<\/jats:p>","DOI":"10.1002\/anie.202302872","type":"journal-article","created":{"date-parts":[[2023,5,4]],"date-time":"2023-05-04T16:19:04Z","timestamp":1683217144000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Building Blocks and COFs Formed <i>in Concert<\/i>\u2014Three\u2010Component Synthesis of Pyrene\u2010Fused Azaacene Covalent Organic Framework in the Bulk and as Films"],"prefix":"10.1002","volume":"62","author":[{"given":"Laura","family":"Frey","sequence":"first","affiliation":[{"name":"Department of Chemistry and Center for Nanoscience (CeNS) Ludwig-Maximilians-University  Butenandtstra\u00dfe 11 (E) 81377 Munich Germany"}]},{"given":"Orlando","family":"Oliveira","sequence":"additional","affiliation":[{"name":"International Iberian Nanotechnology (INL)  Avenida Mestre Jos\u00e9 Veiga 4715-330 Braga Portugal"},{"name":"CICECO\u2014Aveiro Institute of Materials University of Aveiro  3810-193 Aveiro Portugal"}]},{"given":"Ashish","family":"Sharma","sequence":"additional","affiliation":[{"name":"Cavendish Laboratory University of Cambridge  19 JJ Thomson Avenue Cambridge CB3 0HE UK"}]},{"given":"Roman","family":"Guntermann","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Center for Nanoscience (CeNS) Ludwig-Maximilians-University  Butenandtstra\u00dfe 11 (E) 81377 Munich Germany"}]},{"given":"Soraia P. 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