Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	A Twisted Bay-Substituted Quaterrylene Phosphorescing in the NIR Spectral Region
Δημιουργός/Συγγραφέας:	Miletić T. Fermi A. Papadakis I. Orfanos I. Karampitsos N. Avramopoulos A. Demitri N. De Leo F. Pope S.J.A. [EL] Παπαδόπουλος, Μάνθος Γ.[EN] Papadopoulos, Manthos G. Couris S. Bonifazi D.
Εκδότης:	Wiley Blackwell
Ημερομηνία:	2017
Γλώσσα:	Αγγλικά
ISSN:	0018-019X
DOI:	10.1002/hlca.201700192
Περίληψη:	The preparation of the first soluble quaterrylene derivative featuring peripheral tert-butyl substituents and sterically hindering, core-anchored triflate groups has been achieved. This involves a facile synthetic route based on an oxidative coupling of perylene precursors in the presence of H2O2 as oxidant. The steric hindrance between the TfO substituents at the central bay position of the quaterrylene board triggers a strong deformation of the central perylene planarity, which forces the quaterrylene platform to adopt a twisted geometry as shown by X-ray analysis. Exceptionally, photophysical investigations show that the core-twisted quaterrylene phosphoresces in the NIR spectral region at 1716 nm. Moreover, third-order nonlinear optical measurements on solutions and thin film containing the relevant molecule showed very large second hyperpolarizability values, as predicted by theoretical calculations at the CAM-B3LYP/6-31G** level of theory, making this material very appealing for photonic applications.
Τίτλος πηγής δημοσίευσης:	Helvetica Chimica Acta
Τόμος/Κεφάλαιο:	100
Τεύχος:	11
Θεματική Κατηγορία:	[EL] Χημεία (Γενικά)[EN] Chemistry (General)
Λέξεις-Κλειδιά:	Chromophores NIR emitters Organic phosphorescent dyes Oxidative coupling PAHs Polycyclic aromatic hydrocarbons Quaterrylene
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2017 Wiley-VHCA AG, Zurich, Switzerland
Όροι και προϋποθέσεις δικαιωμάτων:	All Open Access, Green
Σημειώσεις:	Horizon 2020 Framework Programme, H2020: 734834; Chicago Committee on High Rise Buildings, CCHRB; European Commission, EC; Cardiff University; Horizon 2020. In particular under the funding scheme Marie Skłodowska-Curie Action-Research and Innovation Staff Exchange (RISE) ‘INFUSION’ Project no. 734834 and the Cardiff University.
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο