Porphyrin-Sensitizers and Anthracene-Annihilators Built in Isostructural Frameworks for Investigating Triplet-Triplet Annihilation Upconversion

Naifang Liu; Hailong Chen; Jie Su; Yuxiang Weng; Jagadese J. Vittal; Sheng Li Huang; Jianzhuang Jiang

doi:10.1021/acs.inorgchem.3c04313

Porphyrin-Sensitizers and Anthracene-Annihilators Built in Isostructural Frameworks for Investigating Triplet-Triplet Annihilation Upconversion

Naifang Liu
, Hailong Chen^*
, Jie Su
, Yuxiang Weng
, Jagadese J. Vittal
, Sheng Li Huang^*
, Jianzhuang Jiang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In this study, four isostructural pillar-layered frameworks were constructed using a porphyrin layer and an anthracene pillar, which served as the sensitizer and annihilator, respectively, in the triplet-triplet annihilation upconversion (TTA-UC) system. Framework 1 demonstrated the highest upconversion quantum yield of 1.01%. Additionally, 1 and 2 also exhibited down-conversion fluorescence resulting from the porphyrin component. A twist intramolecular charge transfer (TICT) state was observed in the bianthracene chromophore of 2, resulting in transient rotation of two anthracene rings and red-shifted emission. Both computational studies and experiments confirmed the transition from a locally excited state to a TICT state upon the inclusion of polar guest molecules into the framework.

Original language	English
Pages (from-to)	4691-4696
Number of pages	6
Journal	Inorganic Chemistry
Volume	63
Issue number	10
DOIs	https://doi.org/10.1021/acs.inorgchem.3c04313
Publication status	Published - 11 Mar 2024
Externally published	Yes

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title = "Porphyrin-Sensitizers and Anthracene-Annihilators Built in Isostructural Frameworks for Investigating Triplet-Triplet Annihilation Upconversion",

abstract = "In this study, four isostructural pillar-layered frameworks were constructed using a porphyrin layer and an anthracene pillar, which served as the sensitizer and annihilator, respectively, in the triplet-triplet annihilation upconversion (TTA-UC) system. Framework 1 demonstrated the highest upconversion quantum yield of 1.01\%. Additionally, 1 and 2 also exhibited down-conversion fluorescence resulting from the porphyrin component. A twist intramolecular charge transfer (TICT) state was observed in the bianthracene chromophore of 2, resulting in transient rotation of two anthracene rings and red-shifted emission. Both computational studies and experiments confirmed the transition from a locally excited state to a TICT state upon the inclusion of polar guest molecules into the framework.",

author = "Naifang Liu and Hailong Chen and Jie Su and Yuxiang Weng and Vittal, \{Jagadese J.\} and Huang, \{Sheng Li\} and Jianzhuang Jiang",

note = "Publisher Copyright: {\textcopyright} 2024 American Chemical Society.",

year = "2024",

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day = "11",

doi = "10.1021/acs.inorgchem.3c04313",

language = "English",

volume = "63",

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journal = "Inorganic Chemistry",

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T1 - Porphyrin-Sensitizers and Anthracene-Annihilators Built in Isostructural Frameworks for Investigating Triplet-Triplet Annihilation Upconversion

AU - Liu, Naifang

AU - Chen, Hailong

AU - Su, Jie

AU - Weng, Yuxiang

AU - Vittal, Jagadese J.

AU - Huang, Sheng Li

AU - Jiang, Jianzhuang

PY - 2024/3/11

Y1 - 2024/3/11

N2 - In this study, four isostructural pillar-layered frameworks were constructed using a porphyrin layer and an anthracene pillar, which served as the sensitizer and annihilator, respectively, in the triplet-triplet annihilation upconversion (TTA-UC) system. Framework 1 demonstrated the highest upconversion quantum yield of 1.01%. Additionally, 1 and 2 also exhibited down-conversion fluorescence resulting from the porphyrin component. A twist intramolecular charge transfer (TICT) state was observed in the bianthracene chromophore of 2, resulting in transient rotation of two anthracene rings and red-shifted emission. Both computational studies and experiments confirmed the transition from a locally excited state to a TICT state upon the inclusion of polar guest molecules into the framework.

AB - In this study, four isostructural pillar-layered frameworks were constructed using a porphyrin layer and an anthracene pillar, which served as the sensitizer and annihilator, respectively, in the triplet-triplet annihilation upconversion (TTA-UC) system. Framework 1 demonstrated the highest upconversion quantum yield of 1.01%. Additionally, 1 and 2 also exhibited down-conversion fluorescence resulting from the porphyrin component. A twist intramolecular charge transfer (TICT) state was observed in the bianthracene chromophore of 2, resulting in transient rotation of two anthracene rings and red-shifted emission. Both computational studies and experiments confirmed the transition from a locally excited state to a TICT state upon the inclusion of polar guest molecules into the framework.

UR - https://www.scopus.com/pages/publications/85186214650

U2 - 10.1021/acs.inorgchem.3c04313

DO - 10.1021/acs.inorgchem.3c04313

M3 - Article

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SN - 0020-1669

VL - 63

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 10

ER -

Porphyrin-Sensitizers and Anthracene-Annihilators Built in Isostructural Frameworks for Investigating Triplet-Triplet Annihilation Upconversion

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