From molecule to complex: Design of smart fluorescent anion-sensors

Shuting Pang; Yuhui Zheng; Zhan Zhou; Chaoliang Tan; Qianming Wang; Xiaodong Li

doi:10.1016/j.optmat.2013.01.005

From molecule to complex: Design of smart fluorescent anion-sensors

Shuting Pang, Yuhui Zheng, Zhan Zhou, Chaoliang Tan, Qianming Wang^*, Xiaodong Li

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

6 Citations (Scopus)

Abstract

A novel 2-(2-pyridyl)benzimidazole (a) compound with hydrogen bond unit was synthesized as an anion receptor. It is noteworthy that only fluoride anions can led to its fluorescence change from ultraviolet (362 nm) to visible region (408 nm) compared with AcO^-, Cl^-, Br^-, and I^-. Spectroscopic studies demonstrated that the recognition process can be attributed to the hydrogen bonding interactions between F^- and the imidazole-NH. More importantly, this ligand can coordinate to europium ion and a novel europium complex Eu(a)₃(NO₃)₃·H₂O possessing red emission was prepared. We noted that the luminescence of this complex can be completely quenched by F^- as well as AcO^-. However, we recognized that the competitive coordination interactions between anions and ligand resulted in the quenching effects. © 2013 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1157-1161
Journal	Optical Materials
Volume	35
Issue number	6
Online published	17 Feb 2013
DOIs	https://doi.org/10.1016/j.optmat.2013.01.005
Publication status	Published - Apr 2013
Externally published	Yes

Research Keywords

Fluorescence
Fluorides
Optical materials
Organic compounds
Sensor

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10.1016/j.optmat.2013.01.005

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title = "From molecule to complex: Design of smart fluorescent anion-sensors",

abstract = "A novel 2-(2-pyridyl)benzimidazole (a) compound with hydrogen bond unit was synthesized as an anion receptor. It is noteworthy that only fluoride anions can led to its fluorescence change from ultraviolet (362 nm) to visible region (408 nm) compared with AcO-, Cl-, Br-, and I-. Spectroscopic studies demonstrated that the recognition process can be attributed to the hydrogen bonding interactions between F- and the imidazole-NH. More importantly, this ligand can coordinate to europium ion and a novel europium complex Eu(a)3(NO3)3·H2O possessing red emission was prepared. We noted that the luminescence of this complex can be completely quenched by F- as well as AcO-. However, we recognized that the competitive coordination interactions between anions and ligand resulted in the quenching effects. {\textcopyright} 2013 Elsevier B.V. All rights reserved.",

keywords = "Fluorescence, Fluorides, Optical materials, Organic compounds, Sensor",

author = "Shuting Pang and Yuhui Zheng and Zhan Zhou and Chaoliang Tan and Qianming Wang and Xiaodong Li",

year = "2013",

month = apr,

doi = "10.1016/j.optmat.2013.01.005",

language = "English",

volume = "35",

pages = "1157--1161",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier B.V.",

number = "6",

}

TY - JOUR

T1 - From molecule to complex

T2 - Design of smart fluorescent anion-sensors

AU - Pang, Shuting

AU - Zheng, Yuhui

AU - Zhou, Zhan

AU - Tan, Chaoliang

AU - Wang, Qianming

AU - Li, Xiaodong

PY - 2013/4

Y1 - 2013/4

N2 - A novel 2-(2-pyridyl)benzimidazole (a) compound with hydrogen bond unit was synthesized as an anion receptor. It is noteworthy that only fluoride anions can led to its fluorescence change from ultraviolet (362 nm) to visible region (408 nm) compared with AcO-, Cl-, Br-, and I-. Spectroscopic studies demonstrated that the recognition process can be attributed to the hydrogen bonding interactions between F- and the imidazole-NH. More importantly, this ligand can coordinate to europium ion and a novel europium complex Eu(a)3(NO3)3·H2O possessing red emission was prepared. We noted that the luminescence of this complex can be completely quenched by F- as well as AcO-. However, we recognized that the competitive coordination interactions between anions and ligand resulted in the quenching effects. © 2013 Elsevier B.V. All rights reserved.

AB - A novel 2-(2-pyridyl)benzimidazole (a) compound with hydrogen bond unit was synthesized as an anion receptor. It is noteworthy that only fluoride anions can led to its fluorescence change from ultraviolet (362 nm) to visible region (408 nm) compared with AcO-, Cl-, Br-, and I-. Spectroscopic studies demonstrated that the recognition process can be attributed to the hydrogen bonding interactions between F- and the imidazole-NH. More importantly, this ligand can coordinate to europium ion and a novel europium complex Eu(a)3(NO3)3·H2O possessing red emission was prepared. We noted that the luminescence of this complex can be completely quenched by F- as well as AcO-. However, we recognized that the competitive coordination interactions between anions and ligand resulted in the quenching effects. © 2013 Elsevier B.V. All rights reserved.

KW - Fluorescence

KW - Fluorides

KW - Optical materials

KW - Organic compounds

KW - Sensor

UR - http://www.scopus.com/inward/record.url?scp=84875436506&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84875436506&origin=recordpage

U2 - 10.1016/j.optmat.2013.01.005

DO - 10.1016/j.optmat.2013.01.005

M3 - RGC 21 - Publication in refereed journal

SN - 0925-3467

VL - 35

SP - 1157

EP - 1161

JO - Optical Materials

JF - Optical Materials

IS - 6

ER -

From molecule to complex: Design of smart fluorescent anion-sensors

Abstract

Research Keywords

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