A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+

Qi Hua You; Hua Bin Huang; Zhi Xia Zhuang; Xiao Ru Wang; Wing Hong Chan

doi:10.1002/bkcs.10971

A new rhodamine-based fluorescent probe for the discrimination of Fe³⁺ from Fe²⁺

Qi Hua You, Hua Bin Huang, Zhi Xia Zhuang, Xiao Ru Wang, Wing Hong Chan

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

5 Citations (Scopus)

Abstract

A new rhodamine-based fluorescent probe for the discrimination of Fe³⁺ from Fe²⁺ has been designed and investigated. The probe shows an immediate visual color change in response to Fe³⁺ and Cu²⁺, while only Fe³⁺ triggers the fluorescent change of the probe. The existence of large amount of other metal ions shows negligible interference in the detection of Fe³⁺. The association constant K_ass of 4.64 × 10⁸ M^-2 (R² = 0.994) and 5.38 × 10⁸ M^-2 (R² = 0.991) of the complex was derived from UV/Vis and fluorescence titration assuming 1:2 stoichiometry of probe-Fe³⁺ complex, respectively.

Original language	English
Pages (from-to)	1772-1777
Number of pages	6
Journal	Bulletin of the Korean Chemical Society
Volume	37
Issue number	11
DOIs	https://doi.org/10.1002/bkcs.10971
Publication status	Published - 1 Nov 2016

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Fe
Fluorescent probe
Rhodamine B

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title = "A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+",

abstract = "A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+ has been designed and investigated. The probe shows an immediate visual color change in response to Fe3+ and Cu2+, while only Fe3+ triggers the fluorescent change of the probe. The existence of large amount of other metal ions shows negligible interference in the detection of Fe3+. The association constant Kass of 4.64 × 108 M-2 (R2 = 0.994) and 5.38 × 108 M-2 (R2 = 0.991) of the complex was derived from UV/Vis and fluorescence titration assuming 1:2 stoichiometry of probe-Fe3+ complex, respectively.",

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T1 - A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+

AU - You, Qi Hua

AU - Huang, Hua Bin

AU - Zhuang, Zhi Xia

AU - Wang, Xiao Ru

AU - Chan, Wing Hong

PY - 2016/11/1

Y1 - 2016/11/1

N2 - A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+ has been designed and investigated. The probe shows an immediate visual color change in response to Fe3+ and Cu2+, while only Fe3+ triggers the fluorescent change of the probe. The existence of large amount of other metal ions shows negligible interference in the detection of Fe3+. The association constant Kass of 4.64 × 108 M-2 (R2 = 0.994) and 5.38 × 108 M-2 (R2 = 0.991) of the complex was derived from UV/Vis and fluorescence titration assuming 1:2 stoichiometry of probe-Fe3+ complex, respectively.

AB - A new rhodamine-based fluorescent probe for the discrimination of Fe3+ from Fe2+ has been designed and investigated. The probe shows an immediate visual color change in response to Fe3+ and Cu2+, while only Fe3+ triggers the fluorescent change of the probe. The existence of large amount of other metal ions shows negligible interference in the detection of Fe3+. The association constant Kass of 4.64 × 108 M-2 (R2 = 0.994) and 5.38 × 108 M-2 (R2 = 0.991) of the complex was derived from UV/Vis and fluorescence titration assuming 1:2 stoichiometry of probe-Fe3+ complex, respectively.

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JF - Bulletin of the Korean Chemical Society

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A new rhodamine-based fluorescent probe for the discrimination of Fe³⁺ from Fe²⁺

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