English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  On the photophysics of nanographene – investigation of functionalized hexa-peri-hexabenzocoronenes as model systems

Haines, P., Reger, D., Traeg, J., Strauß, V., Lungerich, D., Zahn, D., et al. (2021). On the photophysics of nanographene – investigation of functionalized hexa-peri-hexabenzocoronenes as model systems. Nanoscale, 13(2), 801-809. doi:10.1039/D0NR06802K.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0007-8A0F-E Version Permalink: http://hdl.handle.net/21.11116/0000-0007-CF9A-3
Genre: Journal Article

Files

show Files
hide Files
:
Article.pdf (Publisher version), 3MB
 
File Permalink:
-
Name:
Article.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute of Colloids and Interfaces, MTKG; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Haines, Philipp, Author
Reger, David, Author
Traeg, Johannes, Author
Strauß, Volker1, Author              
Lungerich, Dominik, Author
Zahn, Dirk, Author
Jux, Norbert, Author
Guldi, Dirk M., Author
Affiliations:
1Volker Strauß, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3025555              

Content

show
hide
Free keywords: -
 Abstract: In the current study, we report on hexa-peri-hexabenzocoronenes (HBCs) as a representative model for nanographene. To this end, we synthesized a family of functionalized HBCs and investigated the impact of the substituents on the π-extended system of the HBCs. DFT and TD-DFT calculations suggested a charge transfer character, which intensifies as the electron density withdrawing effects of the substituents (–M-effect) increase. Unambiguous corroboration of the charge transfer character in the case of the NO2-substituents was realized with steady-state absorption and fluorescence experiments, which focused on the dependencies on solvent polarity and temperature featuring. Going beyond HBCs with NO2-substituents time-correlated single photon counting, femtosecond and nanosecond transient absorption spectroscopy unveil long-lived singlet and triplet excited states. As a complement, we performed electrochemical and spectroelectrochemical measurements. These were carried out to shed light onto the nature of functionalized HBCs as electron acceptors and/or donors, on one hand, and their corresponding spectroscopic signatures, on the other hand. All of the aforementioned enabled intermolecular charge separation assays with, for example, suitable electron acceptors by steady-state and time-resolved spectroscopies.

Details

show
hide
Language(s): eng - English
 Dates: 2020-12-082021
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1039/D0NR06802K
BibTex Citekey: D0NR06802K
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Nanoscale
  Abbreviation : Nanoscale
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 13 (2) Sequence Number: - Start / End Page: 801 - 809 Identifier: ISSN: 2040-3364