Benzothiazole-substituted 1,3-diaza-2-oxophenoxazine as a luminescent nucleobase surrogate for silver(<scp>i</scp>)-mediated base pairing

Nyenhuis, Marvin; Schönrath, Isabell; Kamzeeva, Polina N.; Zatsepin, Timofei S.; Müller, Jens; Doltsinis, Nikos L.; Aralov, Andrey V.

doi:10.1039/d2dt01762h

Cited by 3 publications

(1 citation statement)

References 100 publications

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“…As we know, there exists 25% singlet excitons and 75% triplet excitons resulted from the electrical excitation. Transitional fluorescent materials can only utilize 25% singlet excitons, which limits the internal quantum efficiency [ 9 , 10 , 11 , 12 ]. In order to achieve high-efficiency devices, phosphorescent transition-metal complexes, such as iridium(III) complex and platinum(II) complex, are usually introduced into OLEDs as EML, owing to their significant properties, such as tunable phosphorescent wavelength, abundant triplet-excited states, high-luminescence quantum efficiency, large spin-orbital coupling (SOC) constant and excellent photo- and chemical stability [ 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Two Novel Neutral Cyclometalated Iridium(III) Complexes Based on 10,11,12,13-Tetrahydrodibenzo[a,c]phenazine for Efficient Red Electroluminescence

et al. 2023

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Two novel neutral phosphorescent iridium(III) complexes (Ir1 and Ir2) were rationally designed and synthesized with high yields using 10,11,12,13-tetrahydrodibenzo[a,c]phenazine as the main ligand. The two complexes showed bright-red phosphorescence (625 nm for Ir1, and 620 nm for Ir2, in CH2Cl2), high-luminescence quantum efficiency (0.32 for Ir1, and 0.35 for Ir2), obvious solvatochromism and good thermostability. Then, they were used to fabricate high-efficiency red OLEDs via vacuum evaporation; the maximum current efficiency, power efficiency, and external quantum efficiency of the red devices based on Ir1 and Ir2 are 13.47/15.22 cd/A, 10.35/12.26 lm/W, and 10.08/7.48%, respectively.

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Section: Introductionmentioning

confidence: 99%

Two Novel Neutral Cyclometalated Iridium(III) Complexes Based on 10,11,12,13-Tetrahydrodibenzo[a,c]phenazine for Efficient Red Electroluminescence

et al. 2023

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Chiral‐at‐Metal Silver‐Mediated Base Pairs: Metal‐Centred Chirality versus DNA Helical Chirality

Lefringhausen

Seiffert

Erbacher

et al. 2022

Chemistry A European J

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When covalently incorporating ligands capable of forming chiral metal complexes into a DNA oligonucleotide duplex, an enantiospecific formation of metal‐mediated base pairs is possible. We have been investigating the chirality of the silver‐mediated base pair P−AgI−P (P, 1H‐imidazo[4,5‐f][1,10]phenanthroline) depending on the number of consecutive P : P pairs within a series of duplexes. Towards this end, both enantiomers of the nucleoside analogue 3‐(1H‐imidazo[4,5‐f][1,10]phenanthrolin‐1‐yl)propane‐1,2‐diol comprising an acyclic backbone were introduced into DNA duplexes, resulting in diastereomeric metal‐mediated base pairs. The same chiral‐at‐metal complex is formed inside the duplex for up to five neighbouring P−AgI−P pairs, irrespective of whether (S)‐P or (R)‐P is used. With six silver‐mediated base pairs, the chirality of the metal complex is inverted for (S)‐P but not for (R)‐P. This indicates an intricate balance of what determines the configuration of the metal complex, the intrinsically preferred metal‐centred chirality or the DNA helical chirality.

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Mitochondriotropic agents conjugated with NSAIDs through metal ions against breast cancer cells

Banti,

Piperoudi,

Raptopoulou

et al. 2024

Journal of Inorganic Biochemistry

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Benzothiazole-substituted 1,3-diaza-2-oxophenoxazine as a luminescent nucleobase surrogate for silver(i)-mediated base pairing

Abstract: A benzothiazole-substituted derivative (X) of 1,3‑diaza‑2‑oxophenoxazine was evaluated with respect to its ability to engage in Ag(I)-mediated homo base pair formation in two different DNA duplexes. The metal binding was...

Cited by 3 publications

References 100 publications

Two Novel Neutral Cyclometalated Iridium(III) Complexes Based on 10,11,12,13-Tetrahydrodibenzo[a,c]phenazine for Efficient Red Electroluminescence

Two Novel Neutral Cyclometalated Iridium(III) Complexes Based on 10,11,12,13-Tetrahydrodibenzo[a,c]phenazine for Efficient Red Electroluminescence

Chiral‐at‐Metal Silver‐Mediated Base Pairs: Metal‐Centred Chirality versus DNA Helical Chirality

Mitochondriotropic agents conjugated with NSAIDs through metal ions against breast cancer cells

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