scholarly journals Protonation and electrostatic interactions based fluorescence probes for selective detection of picric acid (2,4,6-trinitrophenol)-An explosive material

2021 ◽  
Author(s):  
sukhvinder dhiman ◽  
Nancy Singla ◽  
Manzoor Ahmad ◽  
Prabhpreet Singh ◽  
Subodh Kumar
Keyword(s):  
Fluorescent Probes ◽  
Electrostatic Interactions ◽  
Picric Acid ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Explosive Material ◽  
Physico Chemical ◽  
Pka Value ◽  
Nitro Aromatic

Abstract. The picric acid due to its low pKa value possesses distinct physico-chemical features among all other nitro aromatic derivatives to design fluorescent probes for its’ sensitive and selective detection.The...

Dinitro benzene ether reactive turn-on fluorescence probes for selective detection of H2S

2021 ◽  
Author(s):  
Rajasekaran Dhivya ◽  
Venkatachalam Kavitha ◽  
Asaithambi Gomathi ◽  
Ponmudi Keerthana ◽  
Narayanan Santhalakshmi ◽  
...  
Keyword(s):  
Fluorescent Probes ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Turn On

Two novel fluorescent probes namely 3-(2,4-dinitrophenoxy)-2-(4-(diphenylamino)phenyl)-4H-chromen-4-one (P1) and 3-(2,4-dinitrophenoxy)-2-(pyren-1-yl)-4H-chromen-4-one (P2) were designed and synthesized here. The probes (P1 and P2) were found to be highly selective and sensitive towards hydrogen...

Theoretical Exploration of 2,2’-Bipyridines as Electro-Active Compounds in Flow Batteries

2019 ◽  
Author(s):  
Mariano Sánchez-Castellanos ◽  
Martha M. Flores-Leonar ◽  
Zaahel Mata-Pinzón ◽  
Humberto G. Laguna ◽  
Karl García-Ruiz ◽  
...  
Keyword(s):  
Redox Potential ◽  
Active Material ◽  
Chemical Properties ◽  
Small Subset ◽  
Solubility In Water ◽  
Protonation Reaction ◽  
Redox Active ◽  
Physico Chemical ◽  
Pka Value ◽  
Flow Batteries

Compounds from the 2,2’-bipyridine molecular family were investigated for use as redox-active materials in organic flow batteries. For 156 2,2’-bipyridine derivatives reported in the academic literature, we calculated the redox potential, the pKa for the first protonation reaction, and the solubility in aqueous solutions. Using experimental data on a small subset of derivatives, we were able to calibrate our calculations. We find that functionalization with electron-withdrawing groups leads to an increase of the redox potential and to an increase of the molecular acidity (as expressed in a reduction of the pKa value for the first protonation step). Furthermore, calculations of solubility in water indicate that some of the studied derivatives have adequate solubility for flow battery applications. Based on an analysis of the physico-chemical properties of the 156 studied compounds, we down-select five molecules with carbonyl- and nitro-based functional groups, whose parameters are especially promising for potential application as negative redox-active material inorganic flow batteries.

Theoretical Exploration of 2,2’-Bipyridines as Electro-Active Compounds in Flow Batteries

2019 ◽  
Author(s):  
Mariano Sánchez-Castellanos ◽  
Martha M. Flores-Leonar ◽  
Zaahel Mata-Pinzón ◽  
Humberto G. Laguna ◽  
Karl García-Ruiz ◽  
...  
Keyword(s):  
Redox Potential ◽  
Active Material ◽  
Chemical Properties ◽  
Small Subset ◽  
Solubility In Water ◽  
Protonation Reaction ◽  
Redox Active ◽  
Physico Chemical ◽  
Pka Value ◽  
Flow Batteries

Compounds from the 2,2’-bipyridine molecular family were investigated for use as redox-active materials in organic flow batteries. For 156 2,2’-bipyridine derivatives reported in the academic literature, we calculated the redox potential, the pKa for the first protonation reaction, and the solubility in aqueous solutions. Using experimental data on a small subset of derivatives, we were able to calibrate our calculations. We find that functionalization with electron-withdrawing groups leads to an increase of the redox potential and to an increase of the molecular acidity (as expressed in a reduction of the pKa value for the first protonation step). Furthermore, calculations of solubility in water indicate that some of the studied derivatives have adequate solubility for flow battery applications. Based on an analysis of the physico-chemical properties of the 156 studied compounds, we down-select five molecules with carbonyl- and nitro-based functional groups, whose parameters are especially promising for potential application as negative redox-active material inorganic flow batteries.

Two donor–acceptor (D–A) type Zn(ii) complexes as fluorescent probes for highly selective detection of iodide

CrystEngComm ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 2103-2109
Author(s):  
Hao Su ◽  
Liang Hao ◽  
Wajid Hussain ◽  
Zhongkui Li ◽  
Hui Li
Keyword(s):  
Fluorescent Probes ◽  
Selective Detection ◽  
Donor Acceptor

Two noval donor-acceptor (D–A) type Zn(ii) complexes ([Zn2(L1)2(MeCN)(MeOH)]·(MeCN) (1) and [ZnL2(H2O)] (2)) were obtained and selectively detected iodide as fluorescent probes.

Tetracoordinate Imidazole-Based Boron Complexes for the Selective Detection of Picric Acid

2016 ◽  
Vol 55 (21) ◽  
pp. 11153-11159 ◽  
Author(s):  
Kunchala Dhanunjayarao ◽  
Vanga Mukundam ◽  
Krishnan Venkatasubbaiah
Keyword(s):  
Picric Acid ◽  
Selective Detection ◽  
Boron Complexes

Polyfluorene based fluorescent sensor for sensitive and selective detection of picric acid

2022 ◽  
Vol 306 ◽  
pp. 130860
Author(s):  
Wei Zhang ◽  
Bo Gao ◽  
Xue Guo ◽  
Wenyue Dong
Keyword(s):  
Fluorescent Sensor ◽  
Picric Acid ◽  
Selective Detection

Selective Detection of Mercury Ions Based on Tin Oxide Quantum Dots: Performance and Fluorescence Enhancement Model

2021 ◽  
Author(s):  
Jianqiao Liu ◽  
Yu Bai ◽  
Jingcheng Shi ◽  
Qing Yu ◽  
Jifei Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Ions ◽  
Tin Oxide ◽  
Fluorescent Probes ◽  
Fluorescence Enhancement ◽  
Selective Detection ◽  
Mercury Ions ◽  
Metal Ions Detection

The superiority of fluorescence-based method in the metal ions detection are well developed, however, the current quantum dots (QDs) fluorescent probes for mercury ions (Hg2+) still have many limitations, such...

AIE-active luminogen for highly sensitive and selective detection of picric acid in water samples: Pyridyl as an effective recognition group

2019 ◽  
Vol 163 ◽  
pp. 1-8 ◽  
Author(s):  
Yuqing Ma ◽  
Yuyang Zhang ◽  
Xiaojun Liu ◽  
Qiong Zhang ◽  
Lin Kong ◽  
...  
Keyword(s):  
Water Samples ◽  
Picric Acid ◽  
Selective Detection ◽  
Highly Sensitive
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