Výsledky vyhledávání - "Triplet quenching"

Akademický článek

Thermo-Reversible Persistent Phosphorescence Modulation Reveals the Large Contribution Made by Rigidity to the Suppression of Endothermic Intermolecular Triplet Quenching

Autor: Tomoya Kusama, Shuzo Hirata

Publikováno v: Frontiers in Chemistry, Vol 9 (2021)

The suppression of thermally driven triplet deactivation is crucial for efficient persistent room-temperature phosphorescence (pRTP). However, the mechanism by which triplet deactivation occurs in metal-free molecular solids at room temperature (RT)

Externí odkaz: https://doaj.org/article/e05cd57765a64bb4adc73bcf1641cbb7

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Akademický článek

Kinetic Studies of Antioxidant Properties of Ovothiol A

Autor: Nataliya A. Osik, Ekaterina A. Zelentsova, Yuri P. Tsentalovich

Publikováno v: Antioxidants, Vol 10, Iss 9, p 1470 (2021)

Ovothiol A (OSH) is one of the strongest natural antioxidants. So far, its presence was found in tissues of marine invertebrates, algae and fish. Due to very low pKa value of the SH group, under physiological conditions, this compound is almost entir

Externí odkaz: https://doaj.org/article/e275695c87a1461888311d92be98ffe8

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Towards atomically controlled on-surface chemistry on insulating surfaces

Autor: Sokolov, Sophia

In this thesis three different topics are treated. All these topics are allocated at the cross-section of physics and chemistry. Questions from the field of chemistry are investigated by physical methods, i.e. by atomic force microscopy (AFM) and sca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e200383d511e7623529586d324d9d82b
https://epub.uni-regensburg.de/51946/

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Thermo-Reversible Persistent Phosphorescence Modulation Reveals the Large Contribution Made by Rigidity to the Suppression of Endothermic Intermolecular Triplet Quenching

Autor: Shuzo Hirata, Tomoya Kusama

Publikováno v: Frontiers in Chemistry
Frontiers in Chemistry, Vol 9 (2021)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d47461ae32aeab7276d025e60b07e6ae
http://europepmc.org/articles/PMC8636281

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An Ultra-Long-Lived Triplet Excited State in Water at Room Temperature: Insights on the Molecular Design of Tridecafullerenes

Autor: Javier Rojo, Alfonso Pérez-Sánchez, Sergio Ramírez-Barroso, Nazario Martín, Cormac Hally, Santi Nonell, Khalid Azmani, Josep M. Poblet, Antonio Rodríguez-Fortea, Javier Ramos-Soriano, David García-Fresnadillo, Beatriz M. Illescas

Publikováno v: Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Digital.CSIC. Repositorio Institucional del CSIC
Angewandte Chemie (International Ed. in English)
E-Prints Complutense. Archivo Institucional de la UCM
Digital.CSIC: Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)

Suitably engineered molecular systems exhibiting triplet excited states with very long lifetimes are important for high‐end applications in nonlinear optics, photocatalysis, or biomedicine. We report the finding of an ultra‐long‐lived triplet s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9344d0061bf8352d7ba72d034e564f9
http://hdl.handle.net/20.500.12614/2637

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Photophysics and photochemistry of porphyrin core PAMAM dendrimers. Excited states interaction with quinones

Autor: Sonia G. Bertolotti, M. Paula Militello, Ernesto Maximiliano Arbeloa, Irina Victorovna Lijanova, Carlos M. Previtali, Raquel E. Hernández Ramírez, Hernán A. Montejano

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

Quenching of excited states of the meso-substituted tetraphenyl porphyrins with PAMAM branches, and one with PAMAM generation 1 peripherally-modified with thiazole groups by p-benzoquinones, were studied in DMF solution. Fluorescence lifetime measure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1613de94457e1b5d3cd5d47bf1b05b8
https://www.sciencedirect.com/science/article/abs/pii/S1010603019307865

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Akademický článek

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Photoinduced electron transfer interaction of anthraquinones with aniline quenchers: Influence of methyl substitution in aniline donors

Autor: Yasser H. A. Hussein, Velautham Sivakumar, Deepalekshmi Ponnamma

Publikováno v: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 173:931-938

© 2016 Elsevier B.V. Photoinduced electron transfer between triplet state of 9,10-anthraquinone (AQ) and its two derivatives: 2-chloro-9,10-anthraquinone (CAQ) and sodium anthraquinone-2-sulfonate (AQS) and ground state aniline (AN) and its dimethyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c26ec457af3728298b185d60a497862
https://doi.org/10.1016/j.saa.2016.11.001

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