Revealing Topological Influence of Phenylenediamine Unit on Physicochemical Properties of Donor-Acceptor-Donor-Acceptor Thermally Activated Delayed Fluorescent Macrocycles
| Autor: | Youhei Takeda, Aleksandra Nyga, Satoshi Minakata, Piotr de Silva, Saika Izumi, Przemyslaw Data, Norimitsu Tohnai |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
thermally activated delayed fluorescence
Chemistry Organic Chemistry Phenazine charge transfer General Chemistry organic light-emitting diodes Electrochemistry Topology Biochemistry Fluorescence chemistry.chemical_compound macrocycles Excited state donor-acceptor Structural isomer OLED Molecule Donor acceptor |
| Zdroj: | Izumi, S, Nyga, A, de Silva, P, Tohnai, N, Minakata, S, Data, P & Takeda, Y 2020, ' Revealing Topological Influence of Phenylenediamine Unit on Physicochemical Properties of Donor-Acceptor-Donor-Acceptor Thermally Activated Delayed Fluorescent Macrocycles ', Chemistry-An Asian Journal, vol. 15, no. 23, pp. 4098-4103 . https://doi.org/10.1002/asia.202001173 |
| DOI: | 10.1002/asia.202001173 |
| Popis: | This is the peer reviewed version of the following article: S. Izumi, A. Nyga, P. de Silva, N. Tohnai, S. Minakata, P. Data, Y. Takeda, Chem. Asian J. 2020, 15, 4098., which has been published in final form at https://doi.org/10.1002/asia.202001173. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. A new thermally activated delayed fluorescence (TADF)-displaying macrocyclic compound m-1 comprising of two electron-donors (N,N’-diphenyl-m-phenylenediamine) and two electron-acceptors (dibenzo[a,j]phenazine) has been synthesized. The macrocycle developed herein is regarded as a regioisomer of the previously reported TADF macrocycle p-1, which has two N,N’-diphenyl-p-phenylenediamines as the donors. To understand the influence of the topology of the phenylenediamine donors on physicochemical properties of TADF-active macrocycles, herein the molecular structure in the single crystals, photophysical properties, electrochemical behavior, and TADF properties of m-1 have been investigated compared with those of p-1. The substitution of p-phenylene donor with m-phenylene donor led to distinct positive solvatoluminochromism over the full visible-color range, unique oxidative electropolymerization, and slightly lower contribution of TADF, due to the lower CT character in the excited states. |
| Databáze: | OpenAIRE |
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