Tetraazacoronenes and their dimers, trimers and tetramers [data]

• Verfasst von: Eichelmann, Robert [VerfasserIn]
• Verfasst von: Ballmann, Joachim [VerfasserIn]
• Verfasst von: Gade, Lutz H. [VerfasserIn]
• Titel: Tetraazacoronenes and their dimers, trimers and tetramers [data]
• Verf.angabe: Robert Eichelmann, Joachim Ballmann, Lutz H. Gade
• Verlagsort: Heidelberg
• Verlag: Universität
• E-Jahr: 2024
• Jahr: 2024-02-20
• Umfang: 1 Online-Ressource (9 Files)
• Fussnoten: Gefördert durch: German Research Foundation: INST40/467-1FUGG (Justus cluster), German Research Foundation: SFB1249 (TP A2) ; Gesehen am 28.02.2024
• DOI: doi:10.11588/data/ZT3AHN
• Datenträger: Online-Ressource
• Dokumenttyp: Forschungsdaten
• Dokumenttyp: Datenbank
• Sprache: eng
• Bibliogr. Hinweis: Forschungsdaten zu: Eichelmann, Robert: Tetraazacoronenes and their dimers, trimers and tetramers
• Sonstige Nr.: Grant number: DFG INST40/467-1FUGG
• Sonstige Nr.: Grant number: DFG SFB1249 (TP A2)
• Sach-SW: Chemistry
• K10plus-PPN: 1882077717
• K10plus-PPN:
  Universitätsbibliothek
• Lokale URL UB: Zum Volltext

Abstract

Tetraazacoronenes were synthesized from bay-functionalized tetraazaperylenes by Zr-mediated cyclization and four-fold Suzuki-Miyaura cross coupling. In the Zr-mediated approach, an η4-cyclobutadiene-zirconium(IV) complex was isolated as an intermediate to cyclobutene-annulated derivatives. Using bis(pinacolatoboryl)vinyltrimethylsilane as a C2 building block gave the tetraazacoronene target compound along with the condensed azacoronene dimer as well as higher oligomers. The series of extended azacoronenes show highly resolved UV/Vis absorption bands with increased extinction coefficients for the extended aromatic cores and fluorescence quantum yields of up to 80 % at 659 nm.