Solid-state host-guest influences on a BODIPY dye hosted within a crystalline sponge

William J. Gee; Helena J. Shepherd; Daniel M. Dawson; Sharon E. Ashbrook; Paul R. Raithby; Andrew D. Burrows

doi:10.1039/D0NJ02969F

Solid-state host-guest influences on a BODIPY dye hosted within a crystalline sponge

William J. Gee^*, Helena J. Shepherd, Daniel M. Dawson, Sharon E. Ashbrook, Paul R. Raithby, Andrew D. Burrows^*

^*Corresponding author for this work

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

Abstract

Manipulating the emission characteristics of phosphors is a viable strategy to produce unique, and thus difficult to replicate, security optical features that are useful in anticounterfeiting applications. Here, a fluorophore, BODIPY 493/503, displayed altered solid-state emission characteristics upon being hosted within a crystalline molecular flask. Specifically, a bathochromic shift of 939 cm^-1 was observed (λ_(max): 633 → 673 nm), with a concomitant reduction in emission intensity, and emission dependency on excitation wavelength. Multiple factors likely contribute to this behaviour, such as emission filtering by the host framework, exciplex formation between BODIPY and the electron-deficient
framework, and collisional quenching between the host and guest. Here we prioritize solid-state analyses to explore these factors, including electron density mapping of the framework pores, and multinuclear solid-state NMR spectroscopy.

Original language	English
Number of pages	8
Journal	New Journal of Chemistry
Volume	Advance Article
Early online date	30 Jul 2020
DOIs	https://doi.org/10.1039/D0NJ02969F
Publication status	E-pub ahead of print - 30 Jul 2020

Keywords

Metal-organic framework
BODIPY
Crystalline sponge
Dye
Solid-state NMR

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Gee_2020_NJC_Solid-state_CC
Copyright © 2020 The Author(s). Open Access. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
Final published version, 2.95 MBLicence: CC BY-NC

Solid-state host-guest influences on a BODIPY dye hosted within a crystalline sponge (solid-state NMR dataset)
Gee, W. J. (Creator), Shepherd, H. J. (Creator), Dawson, D. M. (Creator), Ashbrook, S. E. (Creator), Raithby, P. R. (Creator) & Burrows, A. D. (Creator), University of St Andrews, 2020
DOI: 10.17630/8f0abe91-afee-41e0-92c9-3a25213cad9c
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title = "Solid-state host-guest influences on a BODIPY dye hosted within a crystalline sponge",

abstract = "Manipulating the emission characteristics of phosphors is a viable strategy to produce unique, and thus difficult to replicate, security optical features that are useful in anticounterfeiting applications. Here, a fluorophore, BODIPY 493/503, displayed altered solid-state emission characteristics upon being hosted within a crystalline molecular flask. Specifically, a bathochromic shift of 939 cm-1 was observed (λ(max): 633 → 673 nm), with a concomitant reduction in emission intensity, and emission dependency on excitation wavelength. Multiple factors likely contribute to this behaviour, such as emission filtering by the host framework, exciplex formation between BODIPY and the electron-deficientframework, and collisional quenching between the host and guest. Here we prioritize solid-state analyses to explore these factors, including electron density mapping of the framework pores, and multinuclear solid-state NMR spectroscopy.",

keywords = "Metal-organic framework, BODIPY, Crystalline sponge, Dye, Solid-state NMR",

author = "Gee, {William J.} and Shepherd, {Helena J.} and Dawson, {Daniel M.} and Ashbrook, {Sharon E.} and Raithby, {Paul R.} and Burrows, {Andrew D.}",

note = "The authors gratefully acknowledge support from an EPSRC programme grant (grant no. EP/K004956/1).",

year = "2020",

month = jul,

day = "30",

doi = "10.1039/D0NJ02969F",

language = "English",

volume = "Advance Article",

journal = "New Journal of Chemistry",

issn = "1144-0546",

publisher = "ROYAL SOC CHEMISTRY",

}

TY - JOUR

T1 - Solid-state host-guest influences on a BODIPY dye hosted within a crystalline sponge

AU - Gee, William J.

AU - Shepherd, Helena J.

AU - Dawson, Daniel M.

AU - Ashbrook, Sharon E.

AU - Raithby, Paul R.

AU - Burrows, Andrew D.

N1 - The authors gratefully acknowledge support from an EPSRC programme grant (grant no. EP/K004956/1).

PY - 2020/7/30

Y1 - 2020/7/30

N2 - Manipulating the emission characteristics of phosphors is a viable strategy to produce unique, and thus difficult to replicate, security optical features that are useful in anticounterfeiting applications. Here, a fluorophore, BODIPY 493/503, displayed altered solid-state emission characteristics upon being hosted within a crystalline molecular flask. Specifically, a bathochromic shift of 939 cm-1 was observed (λ(max): 633 → 673 nm), with a concomitant reduction in emission intensity, and emission dependency on excitation wavelength. Multiple factors likely contribute to this behaviour, such as emission filtering by the host framework, exciplex formation between BODIPY and the electron-deficientframework, and collisional quenching between the host and guest. Here we prioritize solid-state analyses to explore these factors, including electron density mapping of the framework pores, and multinuclear solid-state NMR spectroscopy.

AB - Manipulating the emission characteristics of phosphors is a viable strategy to produce unique, and thus difficult to replicate, security optical features that are useful in anticounterfeiting applications. Here, a fluorophore, BODIPY 493/503, displayed altered solid-state emission characteristics upon being hosted within a crystalline molecular flask. Specifically, a bathochromic shift of 939 cm-1 was observed (λ(max): 633 → 673 nm), with a concomitant reduction in emission intensity, and emission dependency on excitation wavelength. Multiple factors likely contribute to this behaviour, such as emission filtering by the host framework, exciplex formation between BODIPY and the electron-deficientframework, and collisional quenching between the host and guest. Here we prioritize solid-state analyses to explore these factors, including electron density mapping of the framework pores, and multinuclear solid-state NMR spectroscopy.

KW - Metal-organic framework

KW - BODIPY

KW - Crystalline sponge

KW - Dye

KW - Solid-state NMR

U2 - 10.1039/D0NJ02969F

DO - 10.1039/D0NJ02969F

M3 - Article

SN - 1144-0546

VL - Advance Article

JO - New Journal of Chemistry

JF - New Journal of Chemistry

ER -

Solid-state host-guest influences on a BODIPY dye hosted within a crystalline sponge

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Solid-state host-guest influences on a BODIPY dye hosted within a crystalline sponge (solid-state NMR dataset)

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