Umfang:
Online-Ressource
ISSN:
1521-3765
Inhalt:
Abstract: We report the Negishi coupling based synthesis of 1,2,3‐tri (9‐anthryl) benzene derivatives containing three radially arranged anthracenes in a π‐cluster. In the crystalline state of the unsubstituted derivative, intermolecular π–π and CH–π interactions between the anthracene units drive the formation of the two‐dimensional packing structure. Owing to though‐space π‐conjugation between anthracene units, the substances have unique electronic properties. The excited‐state dynamic behavior occurring between the three anthracene moieties, such as exciton localization/delocalization, was elucidated by means of transient absorption measurements and quantum chemical calculations. Interestingly, even though the three anthracenes are closely oriented with approximately 3.0 Å between their C‐9 positions, exciton localization on two anthracene units is energetically favorable because of the flexible nature of the radially arranged aromatic rings.
In:
day:03
In:
month:01
In:
year:2022
In:
extent:1
In:
Chemistry - a European journal, Weinheim : Wiley-VCH, 1995-, (03.01.2022) (gesamt 1), 1521-3765
Sprache:
Englisch
DOI:
10.1002/chem.202104245
URN:
urn:nbn:de:101:1-2022010414374019560843
URL:
https://doi.org/10.1002/chem.202104245
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2022010414374019560843
URL:
https://d-nb.info/1248745663/34
URL:
https://doi.org/10.1002/chem.202104245
