An unusual emissive and colorimetric copper (II) detection by a selective probe based on a pseudo-crown cysteine dye

Solution and gas phase studies

Nuno A. Morais, Luz Fernandes, Jessica Ariana-Machado, José Luis Capelo, Carlos Lodeiro, Elisabete Oliveira

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An off-on-off emissive and colorimetric probe L, based on a Pseudo-Crown cysteine dye was designed for Copper (II). Compound L was studied in solution and in gas-phase (MALDI-MS) over alkaline, alkaline, earth-alkaline and transition metal ions (Li+, Na+, K+, Ca2 +, Mg2 +, Zn2 +, Cu2 +, Co2 +, Ni2 +, Pb2 +, and Hg2 +) in organic media. The recognition of Cu2 + by L lead to red/dark red colored complexes, one emissive L2Cu and another LCu, less emissive. In regards to fluorescent quantum yield in both cases an increase respective to L was visualized (2 fold for LCu and 7 fold for L2Cu). The paramagnetic nature of both complexes was proved by the synthesis of both complex species, as well as, through 1H NMR and FTIR. Compound L demonstrate to be able to detect and quantify the minimal amounts of 1.3 μM/3.3 μM of Cu2 +.

Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalInorganic Chemistry Communications
Volume86
DOIs
Publication statusPublished - 1 Dec 2017

Fingerprint

alkaline earth metals
cysteine
Quantum yield
Transition metals
Metal ions
Cysteine
Copper
metal ions
Coloring Agents
Dyes
Gases
dyes
Earth (planet)
transition metals
Nuclear magnetic resonance
vapor phases
copper
nuclear magnetic resonance
probes
synthesis

Keywords

  • Colorimetric
  • Copper (II)
  • Cysteine
  • Fluorescence

Cite this

@article{039a7d26ca9f44e8ac73a631023e7cee,
title = "An unusual emissive and colorimetric copper (II) detection by a selective probe based on a pseudo-crown cysteine dye: Solution and gas phase studies",
abstract = "An off-on-off emissive and colorimetric probe L, based on a Pseudo-Crown cysteine dye was designed for Copper (II). Compound L was studied in solution and in gas-phase (MALDI-MS) over alkaline, alkaline, earth-alkaline and transition metal ions (Li+, Na+, K+, Ca2 +, Mg2 +, Zn2 +, Cu2 +, Co2 +, Ni2 +, Pb2 +, and Hg2 +) in organic media. The recognition of Cu2 + by L lead to red/dark red colored complexes, one emissive L2Cu and another LCu, less emissive. In regards to fluorescent quantum yield in both cases an increase respective to L was visualized (2 fold for LCu and 7 fold for L2Cu). The paramagnetic nature of both complexes was proved by the synthesis of both complex species, as well as, through 1H NMR and FTIR. Compound L demonstrate to be able to detect and quantify the minimal amounts of 1.3 μM/3.3 μM of Cu2 +.",
keywords = "Colorimetric, Copper (II), Cysteine, Fluorescence",
author = "Morais, {Nuno A.} and Luz Fernandes and Jessica Ariana-Machado and Capelo, {Jos{\'e} Luis} and Carlos Lodeiro and Elisabete Oliveira",
note = "sem pdf conforme despacho. Unidade de Ciencias Biomoleculares Aplicadas-UCIBIO which is financed by national funds from FCT/MEC (UID/Multi/04378/2013), LAQV/REQUIMTE (UID/QUI/50006/2013) and by PROTEOMASS Scientific Society (Portugal). EO acknowledges the Post-Doctoral grant from Fundacao para Ciencia e Tecnologia (FCT-MEC) Portugal SFRH/BPD/108660/2015 and to Foundation L'Oreal (UNESCO and FCT) for the Prize For Women in Science 2015, {"}Medalhas de Honra L'Oreal Portugal para as Mulheres na Ciencia{"}.",
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journal = "Inorganic Chemistry Communications",
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TY - JOUR

T1 - An unusual emissive and colorimetric copper (II) detection by a selective probe based on a pseudo-crown cysteine dye

T2 - Solution and gas phase studies

AU - Morais, Nuno A.

AU - Fernandes, Luz

AU - Ariana-Machado, Jessica

AU - Capelo, José Luis

AU - Lodeiro, Carlos

AU - Oliveira, Elisabete

N1 - sem pdf conforme despacho. Unidade de Ciencias Biomoleculares Aplicadas-UCIBIO which is financed by national funds from FCT/MEC (UID/Multi/04378/2013), LAQV/REQUIMTE (UID/QUI/50006/2013) and by PROTEOMASS Scientific Society (Portugal). EO acknowledges the Post-Doctoral grant from Fundacao para Ciencia e Tecnologia (FCT-MEC) Portugal SFRH/BPD/108660/2015 and to Foundation L'Oreal (UNESCO and FCT) for the Prize For Women in Science 2015, "Medalhas de Honra L'Oreal Portugal para as Mulheres na Ciencia".

PY - 2017/12/1

Y1 - 2017/12/1

N2 - An off-on-off emissive and colorimetric probe L, based on a Pseudo-Crown cysteine dye was designed for Copper (II). Compound L was studied in solution and in gas-phase (MALDI-MS) over alkaline, alkaline, earth-alkaline and transition metal ions (Li+, Na+, K+, Ca2 +, Mg2 +, Zn2 +, Cu2 +, Co2 +, Ni2 +, Pb2 +, and Hg2 +) in organic media. The recognition of Cu2 + by L lead to red/dark red colored complexes, one emissive L2Cu and another LCu, less emissive. In regards to fluorescent quantum yield in both cases an increase respective to L was visualized (2 fold for LCu and 7 fold for L2Cu). The paramagnetic nature of both complexes was proved by the synthesis of both complex species, as well as, through 1H NMR and FTIR. Compound L demonstrate to be able to detect and quantify the minimal amounts of 1.3 μM/3.3 μM of Cu2 +.

AB - An off-on-off emissive and colorimetric probe L, based on a Pseudo-Crown cysteine dye was designed for Copper (II). Compound L was studied in solution and in gas-phase (MALDI-MS) over alkaline, alkaline, earth-alkaline and transition metal ions (Li+, Na+, K+, Ca2 +, Mg2 +, Zn2 +, Cu2 +, Co2 +, Ni2 +, Pb2 +, and Hg2 +) in organic media. The recognition of Cu2 + by L lead to red/dark red colored complexes, one emissive L2Cu and another LCu, less emissive. In regards to fluorescent quantum yield in both cases an increase respective to L was visualized (2 fold for LCu and 7 fold for L2Cu). The paramagnetic nature of both complexes was proved by the synthesis of both complex species, as well as, through 1H NMR and FTIR. Compound L demonstrate to be able to detect and quantify the minimal amounts of 1.3 μM/3.3 μM of Cu2 +.

KW - Colorimetric

KW - Copper (II)

KW - Cysteine

KW - Fluorescence

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U2 - 10.1016/j.inoche.2017.11.001

DO - 10.1016/j.inoche.2017.11.001

M3 - Article

VL - 86

SP - 299

EP - 303

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

SN - 1387-7003

ER -