Substituent effect on TADF properties of 2-modified 4,6-bis(3,6-di-

Irina Fiodorova, Tomas Serevičius, Rokas Skaisgiris, Saulius Juršėnas, Sigitas Tumkevicius

Abstract read

In one paragraph

Article in Beilstein journal of organic chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Irina FiodorovaInstitute of Chemistry, Vilnius University, Naugarduko 24, LT-03225, Vilnius, Lithuania.

Tomas SerevičiusInstitute of Photonics and Nanotechnology, Vilnius University, Saulėtekio 3, LT-10257 Vilnius, Lithuania.ORCID https://orcid.org/0000-0003-1319-7669

Rokas SkaisgirisInstitute of Photonics and Nanotechnology, Vilnius University, Saulėtekio 3, LT-10257 Vilnius, Lithuania.

Saulius JuršėnasInstitute of Photonics and Nanotechnology, Vilnius University, Saulėtekio 3, LT-10257 Vilnius, Lithuania.

Sigitas TumkeviciusInstitute of Chemistry, Vilnius University, Naugarduko 24, LT-03225, Vilnius, Lithuania.ORCID https://orcid.org/0000-0002-3279-1770

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The interest in organic materials exhibiting thermally activated delayed fluorescence (TADF) significantly increased in recent years owing to their potential application as emitters in highly efficient organic light emitting diodes (OLEDs). Simple modification of the molecular structure of TADF compounds through the selection of different electron-donating or accepting fragments opens great possibilities to tune the emission properties and rates. Here we present the synthesis of a series of novel pyrimidine-carbazole emitters and their photophysical characterization in view of effects of substituents in the pyrimidine ring on their TADF properties. We demonstrate that electron-withdrawing substituents directly connected to the pyrimidine unit have greater impact on the lowering of the energy gap between singlet and triplet states (Δ

Indexed as

carbazolepyrimidineRTPsynthesisthermally activated delayed fluorescence

Identifiers

PMID35601989

DOI10.3762/bjoc.18.52

PMCPMC9086497

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