Electron/energy transfer studies on hybrid materials based on dinuclear coordination compounds of twisted perylene diimide

Büyükekşi, Sebile Işık; Karatay, Ahmet; Açar, Nursel; Küçüköz, Betül; Elmalı, Ayhan; Şengül, Abdurrahman

doi:10.1016/j.jphotochem.2018.12.019

Cited by 3 publications

(1 citation statement)

References 34 publications

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“…PDI derivatized with metal complexes has also been developed. − These compounds offer many advantages such as increased solubility, highly efficient ISC owing to the presence of heavy metal ions, and long-lived triplet excited states. As Ru(II) polypyridyl complexes are also known for their excellent (photo)chemical stability and ability to sensitize the generation of singlet oxygen, they have also been very popular in the development of PDI-derivatized complexes. − …”

Section: Introductionmentioning

confidence: 99%

Modulation of the Excited States of Ruthenium(II)-perylene Dyad to Access Near-IR Luminescence, Long-Lived Perylene Triplet State and Singlet Oxygen Photosensitization

Campos,

Fermi,

Ventura

et al. 2024

Inorg. Chem.

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Herein, we present a novel ruthenium(II)-perylene dyad (RuPDI-Py) that combines the photophysical properties of pyrrolidine-substituted perylene diimide (PDI-Py) and the ruthenium(II) polypyridine complex [Ru(phen) 3 ] 2+ . A comprehensive study of excited-state dynamics was carried out using timeresolved and steady-state methods in a dimethyl sulfoxide solution.The RuPDI-Py dyad demonstrated excitation wavelength-dependent photophysical behavior. Upon photoexcitation above 600 nm, the dyad exclusively exhibits the near-infrared (NIR) fluorescence of the 1 PDI-Py state at 785 nm (τ fl = 1.50 ns). In contrast, upon photoexcitation between 350 and 450 nm, the dyad also exhibits a photoinduced electron transfer from the {[Ru(phen) 3 ] 2+ } moiety to PDI-Py, generating the charge-separated intermediate state {Ru(III)-(PDI-Py) •− } (4 μs). This state subsequently decays to the long-lived triplet excited state 3 PDI-Py (36 μs), which is able to sensitize singlet oxygen ( 1 O 2 ). Overall, tuning 1 O 2 photoactivation or NIR fluorescence makes RuPDI-Py a promising candidate for using absorbed light energy to perform the desired functions in theranostic applications.

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Section: Introductionmentioning

confidence: 99%

Modulation of the Excited States of Ruthenium(II)-perylene Dyad to Access Near-IR Luminescence, Long-Lived Perylene Triplet State and Singlet Oxygen Photosensitization

Campos,

Fermi,

Ventura

et al. 2024

Inorg. Chem.

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Spectroscopic, electrochemical and electrocolorimetric properties of novel 2-(2′-pyridyl)-1H-benzimidazole appended bay-substituted perylene diimide triads

Pekdemir

Orman

Selçuki

et al. 2019

Journal of Photochemistry and Photobiology A: Chemistry

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Structural and spectroscopic characterization and DFT studies of 2-amino-1,10-phenanthrolin-1-ium chloride

2019

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A versatile synthetic building block, 2-amino-1,10-phenanthrolin-1-ium chloride (L∙HCl) was synthesized and characterized by IR, 1H and 13C NMR DEPT analysis, UV/Vis and single-crystal X-ray diffraction technique. The molecular geometry, vibrational wavenumbers and gauge including atomic orbital (GIAO), 1H and 13C NMR chemical shifts values of the title compound in the ground state were obtained by using density functional theory (DFT/B3LYP) method with 6-311++G(d,p) basis set and compared with the experimental data. Electronic absorption spectrum of the salt was determined using the time-dependent density functional theory (TD-DFT) method at the same level. In the NMR and electronic absorption spectra calculations, the effect of solvent on the theoretical parameters was included using the default model with DMSO as solvent. The obtained theoretical parameters agree well with the experimental findings.

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Electron/energy transfer studies on hybrid materials based on dinuclear coordination compounds of twisted perylene diimide

Cited by 3 publications

References 34 publications

Modulation of the Excited States of Ruthenium(II)-perylene Dyad to Access Near-IR Luminescence, Long-Lived Perylene Triplet State and Singlet Oxygen Photosensitization

Modulation of the Excited States of Ruthenium(II)-perylene Dyad to Access Near-IR Luminescence, Long-Lived Perylene Triplet State and Singlet Oxygen Photosensitization

Spectroscopic, electrochemical and electrocolorimetric properties of novel 2-(2′-pyridyl)-1H-benzimidazole appended bay-substituted perylene diimide triads

Structural and spectroscopic characterization and DFT studies of 2-amino-1,10-phenanthrolin-1-ium chloride

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