+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

A simple structural hydrazide-based gelator as a fluoride ion colorimetric sensor

A simple structural hydrazide-based gelator as a fluoride ion colorimetric sensor

Organic and Biomolecular Chemistry 12(21): 3478-3483

A 4-nitrobenzohydrazide derivative, N-(3,4,5-octyloxybenzoyl)-N'-(4'-nitrobenzoyl)hydrazine (C8), was synthesized. It could form stable gels in some of the tested organic solvents. The wide-angle X-ray diffraction analysis showed that the xerogels exhibited a layered structure. SEM images revealed that the molecules self-assembled into fibrous aggregates in the xerogels. FT-IR studies confirmed that the intermolecular hydrogen bonding between C=O and N-H groups was the major driving force for the formation of self-assembling gel processes. The gel is utilized for a 'naked eye' detection of fluoride ions, through a reversible gel-sol transition, which is associated with a color change from colorless to red. An extended conjugated system formed through the phenyl group and a five-membered ring based on intramolecular hydrogen bonding between the oxygen atom near the deprotonation nitrogen atom and the other NH, which is responsible for the dramatic color change upon addition of fluoride ions.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 051254301

Download citation: RISBibTeXText

PMID: 24752518

DOI: 10.1039/c4ob00056k

Related references

Fluoride-responsive gelator and colorimetric sensor based on simple and easy-to-prepare cyano-substituted amide. Organic and Biomolecular Chemistry 10(34): 6973-6979, 2012

Isonicotinic acid hydrazide-based silver nanoparticles as simple colorimetric sensor for the detection of Cr3+. Sensors and Actuators B: Chemical 216: 402-408, 2015

Efficient and simple colorimetric fluoride ion sensor based on receptors having urea and thiourea binding sites. Organic Letters 6(20): 3445-3448, 2004

Bis(2-pyridylmethyl)amine-functionalized alizarin: an efficient and simple colorimetric sensor for fluoride and a fluorescence turn-on sensor for Al 3+ in an organic solution. Dalton Transactions 48(15): 5035-5047, 2019

A colorimetric and absorption ratiometric anion sensor based on indole & hydrazide binding units. Spectrochimica Acta. Part A Molecular and Biomolecular Spectroscopy 148: 78-84, 2015

A new fluoride ion colorimetric sensor based on dipyrrolemethanes. Sensors and Actuators B: Chemical 146(1): 160-164, 2010

Colorimetric fluoride sensor based on 1,8-naphthalimide derivatives. Dyes and Pigments 91(3): 442-445, 2011

Colorimetric Fluoride Sensor Based on a Bisthiourea Functionalized Molecular Clip. Synlett 2010(17): 2553-2556, 2010

A ditopic colorimetric sensor for fluoride ion based on thiourea mercury complex. Spectrochimica Acta. Part A Molecular and Biomolecular Spectroscopy 71(3): 814-817, 2008

A novel colorimetric and fluorescent sensor for fluoride detection based on a three-arm phenanthroline derivative. Journal of Materials Science 49(20): 7040-7048, 2014

A fluoride selective dipyrromethane-TCNQ colorimetric sensor based on charge-transfer. Talanta 84(3): 947-951, 2011

A novel colorimetric sensor based on BODIPY-coumarin dye for simultaneous detection of cyanide and fluoride. Journal of Luminescence 186: 212-218, 2017

A Schiff-based colorimetric fluorescent sensor with the potential for detection of fluoride ions. Journal of Fluorescence 23(6): 1107-1111, 2013

Reversible OFFON fluorescent and colorimetric sensor based benzothiazole-bisphenol A for fluoride in MeCN. Sensors and Actuators B: Chemical 221: 900-905, 2015

Fluoride-selective colorimetric sensor based on thiourea binding site and anthraquinone reporter. Spectrochimica Acta. Part A Molecular and Biomolecular Spectroscopy 65(3-4): 633-637, 2006