Synthesis and application of a new class of D-π-A type charge transfer probe containing imidazole - naphthalene units for detection of F- and CO2

被引：22

作者：

Gupta, Ramesh C. ^{[1
]}

Ali, Rashid ^{[1
]}

Razi, Syed S. ^{[1
]}

Srivastava, Priyanka ^{[1
]}

Dwivedi, Sushil K. ^{[1
]}

Misra, Arvind ^{[1
]}

机构：

[1] Banaras Hindu Univ, Inst Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India

来源：

RSC ADVANCES | 2017年 / 7卷 / 09期

关键词：

HYDROGEN-BONDING INTERACTIONS; CARBON-DIOXIDE GAS; FLUORESCENT CHEMOSENSOR; FLUORIDE-ION; SELECTIVE DETECTION; OPTICAL-DETECTION; ANION RECEPTORS; AQUEOUS-MEDIA; CYANIDE; WATER;

D O I：

10.1039/c6ra26439e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new class of D-pi-A type charge transfer probe, 3 and 4, containing imidazole-naphthalene moieties as donor and acceptor, respectively, has been synthesized via a Suzuki coupling reaction. Probe 3, upon interaction with different classes of anions, showed high selectivity toward fluoride with a detection sensitivity of 4 ppb (0.22 mu M). The in situ generated imidazolyl ion (3 + F-) enables the detection of CO2 with the restoration of the original absorption and emission properties of 3. The mode of interaction has been confirmed by 1H NMR and DFT studies which suggested the deprotonation of the -NH fragment of the imidazolyl unit in the presence of F-.

引用

页码：4941 / 4949

页数：9

共 2 条

[1] A new D-π-A type intramolecular charge transfer Dyad System to detect F-: Anion induced CO2 sensing
Razi, Syed S.
Gupta, Ramesh C.
Ali, Rashid
Dwivedi, Sushil K.
Srivastava, Priyanka
Misra, Arvind
SENSORS AND ACTUATORS B-CHEMICAL, 2016, 236 : 520 - 528
[2] Imidazole-coumarin containing D - A type fluorescent probe: Synthesis photophysical properties and sensing behavior for F- and CN- anion
Ali, Rashid
Dwivedi, Sushil K.
Mishra, Hirdyesh
Misra, Arvind
DYES AND PIGMENTS, 2020, 175

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