An OFF-OFF-ON fluorescence sensor for metal ions in stepwise complex formation of 2,3,5,6-tetrakis(2-pyridyl)pyrazine with metal ions

Junpei Yuasa; Shunichi Fukuzumi

doi:10.1021/ja066381j

An OFF-OFF-ON fluorescence sensor for metal ions in stepwise complex formation of 2,3,5,6-tetrakis(2-pyridyl)pyrazine with metal ions

Junpei Yuasa, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

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

35 Scopus citations

Abstract

The fluorescence intensity of 2,3,5,6-tetrakis(2-pyridyl)pyrazine (TPPZ) begins to increase at concentrations of metal ions (Mⁿ⁺) above the 1:2 ratio of metal ion concentration to the initial concentration of TPPZ ([Mⁿ⁺]/[TPPZ]₀ > 0.5), when a 2:1 complex of TPPZ with Mⁿ⁺ [(TPPZ)₂-Mⁿ⁺] is converted to a 1:1 complex of TPPZ with Mⁿ⁺ (TPPZ-Mⁿ⁺), which exhibits strong fluorescence.

Original language	English
Pages (from-to)	15976-15977
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	50
DOIs	https://doi.org/10.1021/ja066381j
State	Published - 20 Dec 2006

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title = "An OFF-OFF-ON fluorescence sensor for metal ions in stepwise complex formation of 2,3,5,6-tetrakis(2-pyridyl)pyrazine with metal ions",

abstract = "The fluorescence intensity of 2,3,5,6-tetrakis(2-pyridyl)pyrazine (TPPZ) begins to increase at concentrations of metal ions (Mn+) above the 1:2 ratio of metal ion concentration to the initial concentration of TPPZ ([Mn+]/[TPPZ]0 > 0.5), when a 2:1 complex of TPPZ with Mn+ [(TPPZ)2-Mn+] is converted to a 1:1 complex of TPPZ with Mn+ (TPPZ-Mn+), which exhibits strong fluorescence.",

author = "Junpei Yuasa and Shunichi Fukuzumi",

year = "2006",

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day = "20",

doi = "10.1021/ja066381j",

language = "English",

volume = "128",

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journal = "Journal of the American Chemical Society",

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T1 - An OFF-OFF-ON fluorescence sensor for metal ions in stepwise complex formation of 2,3,5,6-tetrakis(2-pyridyl)pyrazine with metal ions

AU - Yuasa, Junpei

AU - Fukuzumi, Shunichi

PY - 2006/12/20

Y1 - 2006/12/20

N2 - The fluorescence intensity of 2,3,5,6-tetrakis(2-pyridyl)pyrazine (TPPZ) begins to increase at concentrations of metal ions (Mn+) above the 1:2 ratio of metal ion concentration to the initial concentration of TPPZ ([Mn+]/[TPPZ]0 > 0.5), when a 2:1 complex of TPPZ with Mn+ [(TPPZ)2-Mn+] is converted to a 1:1 complex of TPPZ with Mn+ (TPPZ-Mn+), which exhibits strong fluorescence.

AB - The fluorescence intensity of 2,3,5,6-tetrakis(2-pyridyl)pyrazine (TPPZ) begins to increase at concentrations of metal ions (Mn+) above the 1:2 ratio of metal ion concentration to the initial concentration of TPPZ ([Mn+]/[TPPZ]0 > 0.5), when a 2:1 complex of TPPZ with Mn+ [(TPPZ)2-Mn+] is converted to a 1:1 complex of TPPZ with Mn+ (TPPZ-Mn+), which exhibits strong fluorescence.

UR - http://www.scopus.com/inward/record.url?scp=33845595863&partnerID=8YFLogxK

U2 - 10.1021/ja066381j

DO - 10.1021/ja066381j

M3 - Article

AN - SCOPUS:33845595863

SN - 0002-7863

VL - 128

SP - 15976

EP - 15977

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 50

ER -

An OFF-OFF-ON fluorescence sensor for metal ions in stepwise complex formation of 2,3,5,6-tetrakis(2-pyridyl)pyrazine with metal ions

Abstract

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