2018
Synthesis and properties of pi-conjugated donor-acceptor macrocycles derived from phenanthrylene building blocks
PHULWALE, Bhimrao Vaijnath; Sushil Kumar MISHRA and Ctibor MAZALBasic information
Original name
Synthesis and properties of pi-conjugated donor-acceptor macrocycles derived from phenanthrylene building blocks
Authors
PHULWALE, Bhimrao Vaijnath (356 India, belonging to the institution); Sushil Kumar MISHRA (356 India, belonging to the institution) and Ctibor MAZAL (203 Czech Republic, guarantor, belonging to the institution)
Edition
Tetrahedron, Oxford, ERGAMON-ELSEVIER SCIENCE LTD, 2018, 0040-4020
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10401 Organic chemistry
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 2.379
RIV identification code
RIV/00216224:14310/18:00104259
Organization unit
Faculty of Science
UT WoS
000436218100018
EID Scopus
2-s2.0-85047207614
Keywords in English
Macrocycles; Phenanthrene; Donor-acceptor; Solvatochromism; Intramolecular charge transfer; Sonogashira cross-coupling
Tags
Tags
International impact, Reviewed
Changed: 23/4/2024 12:38, Mgr. Michal Petr
Abstract
V originále
Phenanthrylene-ethynylidene macrocycles combining electron donor and electron acceptor subunits in their shape-persistent fully conjugated core were synthesized. The donor subunits consisted of two 9,10-dialkoxyphenanthrenes linked either with 1,2-ethynylidene or 2,5-thienylene bridge. The acceptors were 9,10-phenanthroquinone and dibenzoquinoxaline and dibenzophenazines derived from it. Solvatochromic photoluminescence from intramolecular-charge-transfer (ICT) excited state was observed mainly in non-polar solvents. In more polar solvents, the excited states favor non-radiative relaxation. DFT calculated HOMO/LUMO energies of the macrocycles correlate well with spectroscopic and electrochemical data. In the series of substituted dibenzophenazine acceptors a good correlation with Hammett substituent constants sigma(-)(p) was found. (C) 2018 Elsevier Ltd. All rights reserved.
Links
LQ1601, research and development project |
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MUNI/A/1258/2016, interní kód MU |
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