Synthesis and evaluation of new thienyl and bithienyl-bis-indolylmethanes as colorimetric sensors for anions

Rosa M. F. Batista; Elisabete  Oliveira; Cristina Nuñez; Susana P. G. Costa; Carlos Lodeiro; M. Manuela M. Raposo

doi:10.1002/poc.1440

Synthesis and evaluation of new thienyl and bithienyl-bis-indolylmethanes as colorimetric sensors for anions

Rosa M. F. Batista, Elisabete Oliveira , Cristina Nuñez, Susana P. G. Costa, Carlos Lodeiro, M. Manuela M. Raposo

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

22 Citations (Scopus)

Abstract

The synthesis and full characterization of new bis-indolylmethanes containing thienyl and bithienyl moieties are reported. The sensor ability of the compounds in the presence of halide ions (F- Cl-, Br-, and I-), NO3-, ClO4-, SO42-, CN-, and OH- ions was investigated in acetonitrile. The experimental results indicate that they Could act as selective chromogenic-sensing molecules for the most basic anions F- CN- and OH- as a well-defined color change from yellow to pink was observed. The interaction constants between compounds 1 and 2 in the presence of F, CN, and OH- were calculated and increased in the order OH- > F- > CN-. Copyright (C) 2008 John Wiley & Sons, Ltd.

Original language	English
Pages (from-to)	362-366
Journal	Journal Of Physical Organic Chemistry
Volume	22
Issue number	5
DOIs	https://doi.org/10.1002/poc.1440
Publication status	Published - 1 Jan 2009

Keywords

(Bi)thiophene
Anion chemosensors
Bis-indolylmethanes
Colorimetric sensors
Heterocycles
Acetonitrile
Color
Complexation
Negative ions
Sensors
Thiophene
Colorimetry

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title = "Synthesis and evaluation of new thienyl and bithienyl-bis-indolylmethanes as colorimetric sensors for anions",

abstract = "The synthesis and full characterization of new bis-indolylmethanes containing thienyl and bithienyl moieties are reported. The sensor ability of the compounds in the presence of halide ions (F- Cl-, Br-, and I-), NO3-, ClO4-, SO42-, CN-, and OH- ions was investigated in acetonitrile. The experimental results indicate that they Could act as selective chromogenic-sensing molecules for the most basic anions F- CN- and OH- as a well-defined color change from yellow to pink was observed. The interaction constants between compounds 1 and 2 in the presence of F, CN, and OH- were calculated and increased in the order OH- > F- > CN-. Copyright (C) 2008 John Wiley & Sons, Ltd.",

keywords = "thiourea, efficient, colorimetric, fluoride, (bi)thiophene, catalyzed, urea, anion, chromophores, derivatives, chemosensors, anthraquinone, sensors, heterocycles, nonlinear-optical, bis-indolylmethanes, reactions, binding-sites, proton-transfer, (Bi)thiophene, Anion chemosensors, Bis-indolylmethanes, Colorimetric sensors, Heterocycles, Acetonitrile, Color, Complexation, Negative ions, Sensors, Thiophene, Colorimetry",

author = "Batista, {Rosa M. F.} and Elisabete Oliveira and Cristina Nu{\~n}ez and Costa, {Susana P. G.} and Carlos Lodeiro and Raposo, {M. Manuela M.}",

year = "2009",

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doi = "10.1002/poc.1440",

language = "English",

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T1 - Synthesis and evaluation of new thienyl and bithienyl-bis-indolylmethanes as colorimetric sensors for anions

AU - Batista, Rosa M. F.

AU - Oliveira , Elisabete

AU - Nuñez, Cristina

AU - Costa, Susana P. G.

AU - Lodeiro, Carlos

AU - Raposo, M. Manuela M.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - The synthesis and full characterization of new bis-indolylmethanes containing thienyl and bithienyl moieties are reported. The sensor ability of the compounds in the presence of halide ions (F- Cl-, Br-, and I-), NO3-, ClO4-, SO42-, CN-, and OH- ions was investigated in acetonitrile. The experimental results indicate that they Could act as selective chromogenic-sensing molecules for the most basic anions F- CN- and OH- as a well-defined color change from yellow to pink was observed. The interaction constants between compounds 1 and 2 in the presence of F, CN, and OH- were calculated and increased in the order OH- > F- > CN-. Copyright (C) 2008 John Wiley & Sons, Ltd.

AB - The synthesis and full characterization of new bis-indolylmethanes containing thienyl and bithienyl moieties are reported. The sensor ability of the compounds in the presence of halide ions (F- Cl-, Br-, and I-), NO3-, ClO4-, SO42-, CN-, and OH- ions was investigated in acetonitrile. The experimental results indicate that they Could act as selective chromogenic-sensing molecules for the most basic anions F- CN- and OH- as a well-defined color change from yellow to pink was observed. The interaction constants between compounds 1 and 2 in the presence of F, CN, and OH- were calculated and increased in the order OH- > F- > CN-. Copyright (C) 2008 John Wiley & Sons, Ltd.

KW - thiourea

KW - efficient

KW - colorimetric

KW - fluoride

KW - (bi)thiophene

KW - catalyzed

KW - urea

KW - anion

KW - chromophores

KW - derivatives

KW - chemosensors

KW - anthraquinone

KW - sensors

KW - heterocycles

KW - nonlinear-optical

KW - bis-indolylmethanes

KW - reactions

KW - binding-sites

KW - proton-transfer

KW - (Bi)thiophene

KW - Anion chemosensors

KW - Bis-indolylmethanes

KW - Colorimetric sensors

KW - Heterocycles

KW - Acetonitrile

KW - Color

KW - Complexation

KW - Negative ions

KW - Sensors

KW - Thiophene

KW - Colorimetry

U2 - 10.1002/poc.1440

DO - 10.1002/poc.1440

M3 - Article

SN - 0894-3230

VL - 22

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EP - 366

JO - Journal Of Physical Organic Chemistry

JF - Journal Of Physical Organic Chemistry

IS - 5

ER -

Synthesis and evaluation of new thienyl and bithienyl-bis-indolylmethanes as colorimetric sensors for anions

Abstract

Keywords

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