Cyclopenta[hi]aceanthrylene decorated with multiple and long alkoxy chains: physicochemical properties and single-walled carbon nanotubes exfoliation capability
Entity
UAM. Departamento de Química OrgánicaPublisher
Electrochemical SocietyDate
2020-01-06Citation
10.1149/2162-8777/ab9a5a
ECS Journal of solid state and technology 9.5 (2020): 051011
ISSN
2162-8769 (print); 2162-8777 (online)DOI
10.1149/2162-8777/ab9a5aFunded by
Financial support from the “Solar Energy goes Hybrid” Initiative of the Bavarian Ministry for Science, Culture and Education (SolTech), Comunidad de Madrid (FOTOCARBON), and Spanish MICINN (CTQ2017-85393-P) is acknowledgedProject
Gobierno de España. CTQ2017-85393-P; Comunidad de Madrid. S2013/MIT-2841/FOTOCARBONEditor's Version
https:/doi.orgi/10.1149/2162-8777/ab9a5aSubjects
(CPA); Absorption spectroscopy; Fluorescence; Nanotubes; QuímicaRights
© 2020 The Author(s)Abstract
A rod-like cyclopenta[hi]aceanthrylene (CPA) derivative bearing three dodecyloxy chains at each of its two terminal positions was prepared. Spectroscopic (i.e., steady-state absorption and fluorescence) and electrochemical studies carried out with this polycyclic aromatic hydrocarbon (PAH) derivative showed an intense absorption through the entire UV-vis spectral range, weak fluorescence, small HOMO-LUMO gap, and excellent electron accepting capability. Transient absorption spectroscopy (TAS) revealed the formation of singlet and triplet excited states; the latter was, however, only observed in the presence of a triplet sensitizer. The exfoliation capability of this lipophilic CPA towards single-walled carbon nanotubes (SWCNTs) in THF was also investigated. On one hand, transmission electron microscopy (TEM) pointed to an efficient debundling of SWCNTs by the CPA derivative by means of non-covalent interactions. On the other hand, important differences in the ground and excited state features of the uncomplexed and SWCNT-complexed CPA were revealed by Raman and TAS
Files in this item
Google Scholar:Schierl, Christoph
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Pardo, Virtudes
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Bottari, Giovanni
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Guldi, Dirk M.
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Torres Cebada, Tomás
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