BN-Substitution in Dithienylpyrenes Prevents Excimer Formation in Solution and in the Solid State.
Journal
The journal of physical chemistry. C, Nanomaterials and interfaces
ISSN: 1932-7447
Titre abrégé: J Phys Chem C Nanomater Interfaces
Pays: United States
ID NLM: 101299949
Informations de publication
Date de publication:
10 Mar 2022
10 Mar 2022
Historique:
received:
08
10
2021
revised:
20
12
2021
entrez:
18
3
2022
pubmed:
19
3
2022
medline:
19
3
2022
Statut:
ppublish
Résumé
Boron-nitrogen substitutions in polycyclic aromatic hydrocarbons (PAHs) have a strong impact on the optical properties of the molecules due to a significantly more heterogeneous electron distribution. However, besides these single-molecule properties, the observed optical properties of PAHs critically depend on the degree of intermolecular interactions such as π-π-stacking, dipolar interactions, or the formation of dimers in the excited state. Pyrene is the most prominent example showing the latter as it exhibits a broadened and strongly bathochromically shifted emission band at high concentrations in solution compared to the respective monomers. In the solid state, the impact of intermolecular interactions is even higher as it determines the crystal packing crucially. In this work, a thiophene-flanked BN-pyrene (
Identifiants
pubmed: 35299818
doi: 10.1021/acs.jpcc.1c08812
pmc: PMC8919264
doi:
Types de publication
Journal Article
Langues
eng
Pagination
4563-4576Informations de copyright
© 2022 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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