A new phosphorescent chemosensor bearing Zn-DPA sites for H 2PO4-

Hye Bin Kim; Yifan Liu; Dayoung Nam; Yinan Li; Sungnam Park; Juyoung Yoon; Myung Ho Hyun

doi:10.1016/j.dyepig.2014.02.015

A new phosphorescent chemosensor bearing Zn-DPA sites for H ₂PO₄^-

Hye Bin Kim, Yifan Liu, Dayoung Nam, Yinan Li, Sungnam Park, Juyoung Yoon, Myung Ho Hyun

Department of Chemistry & Nanoscience

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

22 Scopus citations

Abstract

A phosphorescence chemosensor bearing an iridium (III) complex as a communicating source and two Zn-DPA units acting as a preorganized binding site for H₂PO₄^- is presented. The phosphorescent chemosensor displayed a selective phosphorescence enhancement with H ₂PO₄^- in aqueous solution and at neutral pH. On the other hand, F^-, Cl^-, Br^-, I^-, NO₃^-, CH₃COO^-, and ClO ₄^- did not induce significant changes in phosphorescence. Furthermore, the phosphorescent chemosensor shows selectivity for H ₂PO₄^- over the related phosphate species, such as ATP and pyrophosphate. In addition, there was a distinct lifetime change only for H₂PO₄^-. The association constant was calculated to be 9.68 × 10⁴ M^-1 for H ₂PO₄^-.

Original language	English
Pages (from-to)	20-24
Number of pages	5
Journal	Dyes and Pigments
Volume	106
DOIs	https://doi.org/10.1016/j.dyepig.2014.02.015
State	Published - Jul 2014

Bibliographical note

Funding Information:
This research was supported by a grant from the National Research Foundation of Korea (NRF) funded by the Korean government (MSIP) (No. 2012-0002571 for M.H.H., No. 2010-0020209 for S.P. and National Creative Research Initiative : No. 2012R1A3A2048814 for J.Y.)

Keywords

Anion recognition
Dihydrogen phosphate sensing
Iridium complex
Phosphate sensor
Phosphorescence chemosensor
Zinc complex

Access to Document

10.1016/j.dyepig.2014.02.015

Cite this

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title = "A new phosphorescent chemosensor bearing Zn-DPA sites for H 2PO4-",

abstract = "A phosphorescence chemosensor bearing an iridium (III) complex as a communicating source and two Zn-DPA units acting as a preorganized binding site for H2PO4- is presented. The phosphorescent chemosensor displayed a selective phosphorescence enhancement with H 2PO4- in aqueous solution and at neutral pH. On the other hand, F-, Cl-, Br-, I-, NO3-, CH3COO-, and ClO 4- did not induce significant changes in phosphorescence. Furthermore, the phosphorescent chemosensor shows selectivity for H 2PO4- over the related phosphate species, such as ATP and pyrophosphate. In addition, there was a distinct lifetime change only for H2PO4-. The association constant was calculated to be 9.68 × 104 M-1 for H 2PO4-.",

keywords = "Anion recognition, Dihydrogen phosphate sensing, Iridium complex, Phosphate sensor, Phosphorescence chemosensor, Zinc complex",

author = "Kim, {Hye Bin} and Yifan Liu and Dayoung Nam and Yinan Li and Sungnam Park and Juyoung Yoon and Hyun, {Myung Ho}",

note = "Funding Information: This research was supported by a grant from the National Research Foundation of Korea (NRF) funded by the Korean government (MSIP) (No. 2012-0002571 for M.H.H., No. 2010-0020209 for S.P. and National Creative Research Initiative : No. 2012R1A3A2048814 for J.Y.) ",

year = "2014",

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doi = "10.1016/j.dyepig.2014.02.015",

language = "English",

volume = "106",

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AU - Kim, Hye Bin

AU - Liu, Yifan

AU - Nam, Dayoung

AU - Li, Yinan

AU - Park, Sungnam

AU - Yoon, Juyoung

AU - Hyun, Myung Ho

N1 - Funding Information: This research was supported by a grant from the National Research Foundation of Korea (NRF) funded by the Korean government (MSIP) (No. 2012-0002571 for M.H.H., No. 2010-0020209 for S.P. and National Creative Research Initiative : No. 2012R1A3A2048814 for J.Y.)

PY - 2014/7

Y1 - 2014/7

N2 - A phosphorescence chemosensor bearing an iridium (III) complex as a communicating source and two Zn-DPA units acting as a preorganized binding site for H2PO4- is presented. The phosphorescent chemosensor displayed a selective phosphorescence enhancement with H 2PO4- in aqueous solution and at neutral pH. On the other hand, F-, Cl-, Br-, I-, NO3-, CH3COO-, and ClO 4- did not induce significant changes in phosphorescence. Furthermore, the phosphorescent chemosensor shows selectivity for H 2PO4- over the related phosphate species, such as ATP and pyrophosphate. In addition, there was a distinct lifetime change only for H2PO4-. The association constant was calculated to be 9.68 × 104 M-1 for H 2PO4-.

AB - A phosphorescence chemosensor bearing an iridium (III) complex as a communicating source and two Zn-DPA units acting as a preorganized binding site for H2PO4- is presented. The phosphorescent chemosensor displayed a selective phosphorescence enhancement with H 2PO4- in aqueous solution and at neutral pH. On the other hand, F-, Cl-, Br-, I-, NO3-, CH3COO-, and ClO 4- did not induce significant changes in phosphorescence. Furthermore, the phosphorescent chemosensor shows selectivity for H 2PO4- over the related phosphate species, such as ATP and pyrophosphate. In addition, there was a distinct lifetime change only for H2PO4-. The association constant was calculated to be 9.68 × 104 M-1 for H 2PO4-.

KW - Anion recognition

KW - Dihydrogen phosphate sensing

KW - Iridium complex

KW - Phosphate sensor

KW - Phosphorescence chemosensor

KW - Zinc complex

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