Tren-spaced rhodamine and pyrene fluorophores: Excimer modulation with metal ion complexation

Min Hee Lee; Guipeun Kang; Jong Wan Kim; Sihyun Ham; Jong Seung Kim

doi:10.1080/10610270802527069

Tren-spaced rhodamine and pyrene fluorophores: Excimer modulation with metal ion complexation

Min Hee Lee, Guipeun Kang, Jong Wan Kim, Sihyun Ham, Jong Seung Kim

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

13 Scopus citations

Abstract

A new chromogenic and fluorogenic probe (1) exhibits a significant selectivity towards Cu(II) and Hg(II) ions to give the modulation of pyrene (Py) excimer emission. Also, its sensing behaviours towards Cu(II) and Hg(II) ions were investigated experimentally and computationally. Hg(II) complexation induces the ring opening of the rhodamine spirolactam unit of 1 and shows enhanced dynamic excimer emission. Cu(II), on the other hand, is found to be encapsulated in the Py amide group to provide a static excimer emission. Hg(II) in the Hg(II)-1 complex can be readily replaced by Cu(II), and then the static excimer emission of two Pys in 1 is reformed.

Original language	English (US)
Pages (from-to)	135-141
Number of pages	7
Journal	Supramolecular Chemistry
Volume	21
Issue number	1-2
DOIs	https://doi.org/10.1080/10610270802527069
State	Published - Jan 2009
Externally published	Yes

Keywords

Copper
Mercury
Pyrene
Rhodamine
Static excimer

ASJC Scopus subject areas

General Chemistry

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10.1080/10610270802527069

Cite this

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title = "Tren-spaced rhodamine and pyrene fluorophores: Excimer modulation with metal ion complexation",

abstract = "A new chromogenic and fluorogenic probe (1) exhibits a significant selectivity towards Cu(II) and Hg(II) ions to give the modulation of pyrene (Py) excimer emission. Also, its sensing behaviours towards Cu(II) and Hg(II) ions were investigated experimentally and computationally. Hg(II) complexation induces the ring opening of the rhodamine spirolactam unit of 1 and shows enhanced dynamic excimer emission. Cu(II), on the other hand, is found to be encapsulated in the Py amide group to provide a static excimer emission. Hg(II) in the Hg(II)-1 complex can be readily replaced by Cu(II), and then the static excimer emission of two Pys in 1 is reformed.",

keywords = "Copper, Mercury, Pyrene, Rhodamine, Static excimer",

author = "Lee, {Min Hee} and Guipeun Kang and Kim, {Jong Wan} and Sihyun Ham and Kim, {Jong Seung}",

year = "2009",

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volume = "21",

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TY - JOUR

T1 - Tren-spaced rhodamine and pyrene fluorophores

T2 - Excimer modulation with metal ion complexation

AU - Lee, Min Hee

AU - Kang, Guipeun

AU - Kim, Jong Wan

AU - Ham, Sihyun

AU - Kim, Jong Seung

PY - 2009/1

Y1 - 2009/1

N2 - A new chromogenic and fluorogenic probe (1) exhibits a significant selectivity towards Cu(II) and Hg(II) ions to give the modulation of pyrene (Py) excimer emission. Also, its sensing behaviours towards Cu(II) and Hg(II) ions were investigated experimentally and computationally. Hg(II) complexation induces the ring opening of the rhodamine spirolactam unit of 1 and shows enhanced dynamic excimer emission. Cu(II), on the other hand, is found to be encapsulated in the Py amide group to provide a static excimer emission. Hg(II) in the Hg(II)-1 complex can be readily replaced by Cu(II), and then the static excimer emission of two Pys in 1 is reformed.

AB - A new chromogenic and fluorogenic probe (1) exhibits a significant selectivity towards Cu(II) and Hg(II) ions to give the modulation of pyrene (Py) excimer emission. Also, its sensing behaviours towards Cu(II) and Hg(II) ions were investigated experimentally and computationally. Hg(II) complexation induces the ring opening of the rhodamine spirolactam unit of 1 and shows enhanced dynamic excimer emission. Cu(II), on the other hand, is found to be encapsulated in the Py amide group to provide a static excimer emission. Hg(II) in the Hg(II)-1 complex can be readily replaced by Cu(II), and then the static excimer emission of two Pys in 1 is reformed.

KW - Copper

KW - Mercury

KW - Pyrene

KW - Rhodamine

KW - Static excimer

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Tren-spaced rhodamine and pyrene fluorophores: Excimer modulation with metal ion complexation

Abstract

Keywords

ASJC Scopus subject areas

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