A highly selective turn-on fluorescent chemosensor for copper(II) ion

Shu-Pao Wu; Tzu Hao Wang; Shi Rong Liu

doi:10.1016/j.tet.2010.10.054

A highly selective turn-on fluorescent chemosensor for copper(II) ion

Shu-Pao Wu^*, Tzu Hao Wang, Shi Rong Liu

^*Corresponding author for this work

Department of Applied Chemistry

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

80 Scopus citations

Abstract

A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu²⁺ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu²⁺. However, the metal ions Ag⁺, Ca²⁺, Cd²⁺, Co²⁺, Fe²⁺, Fe³⁺, Hg ²⁺, Mg²⁺, Mn²⁺, Ni²⁺, Pb ²⁺, and Zn²⁺ produced only minor changes in fluorescence values for the system. The apparent association constant (K_a) of Cu²⁺ binding in chemosensor 1 was found to be 5.55×10 ³ M^-1. The maximum fluorescence enhancement caused by Cu²⁺ binding in chemosensor 1 was observed over the pH range 5-7.5.

Original language	English
Pages (from-to)	9655-9658
Number of pages	4
Journal	Tetrahedron
Volume	66
Issue number	51
DOIs	https://doi.org/10.1016/j.tet.2010.10.054
State	Published - 18 Dec 2010

Keywords

Cu(II)
Diaminomaleonitrile
Fluorescent chemosensor
Pyrene

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@article{560143aa0001409e970dba7000812eb8,

title = "A highly selective turn-on fluorescent chemosensor for copper(II) ion",

abstract = "A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu2+ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu2+. However, the metal ions Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg 2+, Mg2+, Mn2+, Ni2+, Pb 2+, and Zn2+ produced only minor changes in fluorescence values for the system. The apparent association constant (Ka) of Cu2+ binding in chemosensor 1 was found to be 5.55×10 3 M-1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.",

keywords = "Cu(II), Diaminomaleonitrile, Fluorescent chemosensor, Pyrene",

author = "Shu-Pao Wu and Wang, {Tzu Hao} and Liu, {Shi Rong}",

year = "2010",

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T1 - A highly selective turn-on fluorescent chemosensor for copper(II) ion

AU - Wu, Shu-Pao

AU - Wang, Tzu Hao

AU - Liu, Shi Rong

PY - 2010/12/18

Y1 - 2010/12/18

N2 - A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu2+ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu2+. However, the metal ions Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg 2+, Mg2+, Mn2+, Ni2+, Pb 2+, and Zn2+ produced only minor changes in fluorescence values for the system. The apparent association constant (Ka) of Cu2+ binding in chemosensor 1 was found to be 5.55×10 3 M-1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.

AB - A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu2+ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu2+. However, the metal ions Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg 2+, Mg2+, Mn2+, Ni2+, Pb 2+, and Zn2+ produced only minor changes in fluorescence values for the system. The apparent association constant (Ka) of Cu2+ binding in chemosensor 1 was found to be 5.55×10 3 M-1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.

KW - Cu(II)

KW - Diaminomaleonitrile

KW - Fluorescent chemosensor

KW - Pyrene

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