Intersystem Crossing Rates of Violet-, Green-and Red-emitting DNA Stabilized Silver Luminescent Clusters

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Intersystem Crossing Rates of Violet-, Green-and Red-emitting DNA Stabilized Silver Luminescent Clusters. / Ramasanoff, Ruslan R.; Соколов, Петр Александрович.

в: Chemical Physics Letters, Том 807, 140081, 16.11.2022.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{53b9117c50464cd094b49560ef8ecbeb,

title = "Intersystem Crossing Rates of Violet-, Green-and Red-emitting DNA Stabilized Silver Luminescent Clusters",

abstract = "The dark states of DNA stabilized silver clusters are extensively used for upconversion fluorescence enhancement. This work probed the triplet state saturation of the violet-, green- and red-emitting Ag N-DNA complexes through intersystem crossing rate constant DFT calculations. Our computations showed that DNA significantly affects the electronic structure of Ag 3 + 1 and Ag 4 +2 clusters. It dramatically increases the ISC constants from value ca. ∼10 4 s −1 for free clusters up to ca. ∼10 8 s −1 for clusters bound to nucleobases. The results indicate that silver clusters in complex with DNA can actively transition to the triplet state upon excitation, ISC process can compete with fluorescence. ",

keywords = "DFT, DNA, Intersystem crossing rates, Silver clusters, Triplet state",

author = "Ramasanoff, {Ruslan R.} and Соколов, {Петр Александрович}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = nov,

day = "16",

doi = "10.1016/j.cplett.2022.140081",

language = "English",

volume = "807",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Intersystem Crossing Rates of Violet-, Green-and Red-emitting DNA Stabilized Silver Luminescent Clusters

AU - Ramasanoff, Ruslan R.

AU - Соколов, Петр Александрович

PY - 2022/11/16

Y1 - 2022/11/16

N2 - The dark states of DNA stabilized silver clusters are extensively used for upconversion fluorescence enhancement. This work probed the triplet state saturation of the violet-, green- and red-emitting Ag N-DNA complexes through intersystem crossing rate constant DFT calculations. Our computations showed that DNA significantly affects the electronic structure of Ag 3 + 1 and Ag 4 +2 clusters. It dramatically increases the ISC constants from value ca. ∼10 4 s −1 for free clusters up to ca. ∼10 8 s −1 for clusters bound to nucleobases. The results indicate that silver clusters in complex with DNA can actively transition to the triplet state upon excitation, ISC process can compete with fluorescence.

AB - The dark states of DNA stabilized silver clusters are extensively used for upconversion fluorescence enhancement. This work probed the triplet state saturation of the violet-, green- and red-emitting Ag N-DNA complexes through intersystem crossing rate constant DFT calculations. Our computations showed that DNA significantly affects the electronic structure of Ag 3 + 1 and Ag 4 +2 clusters. It dramatically increases the ISC constants from value ca. ∼10 4 s −1 for free clusters up to ca. ∼10 8 s −1 for clusters bound to nucleobases. The results indicate that silver clusters in complex with DNA can actively transition to the triplet state upon excitation, ISC process can compete with fluorescence.

KW - DFT

KW - DNA

KW - Intersystem crossing rates

KW - Silver clusters

KW - Triplet state

UR - https://doi.org/10.1016/j.cplett.2022.140081

UR - https://www.mendeley.com/catalogue/53949a00-40d0-34fe-8d1e-8f3b48e76e89/

UR - http://www.scopus.com/inward/record.url?scp=85139226530&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2022.140081

DO - 10.1016/j.cplett.2022.140081

M3 - Article

VL - 807

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

M1 - 140081

ER -

ID: 98995215