TY - JOUR
T1 - Oxidation of tellurium dyes induced by mercury: More insights on the naked-eye and fluorescent Hg2+ detection
AU - Soares-Paulino, Antônio A.
AU - Giroldo, Lilian
AU - Celante, Gizele
AU - Oliveira, Elisabete
AU - Santos, Sérgio M.
AU - Mendes, Ricardo F.
AU - Almeida Paz, Filipe A.
AU - Fioroto, Alexandre M.
AU - Oliveira, Pedro Vitoriano
AU - Serrano, Silvia H. P.
AU - Lodeiro, Carlos
AU - Santos, Alcindo A. dos
N1 - info:eu-repo/grantAgreement/FCT/5876/147218/PT#
info:eu-repo/grantAgreement/FCT/5876/147332/PT#
A. A. D. S. and A. A. S.-P. (CNPq scholarship holder - Brazil) are thankful to CNPq (141454/2013-0, 207311/2015-3 and 153759/2016-0), FAPESP (2016/09579-0) and also to the financial and structural support offered by the University of Sao Paulo through the NAP-CatSinQ (Research Core in Catalysis and Chemical Synthesis). P. V. O. and A. M. F are thankful to FAPESP research grant (2017/2599-2). C.L. E.O. and A.A.S.P thanks the Associate Laboratory Research Unit for Green Chemistry - Clean Processes and Technologies - LAQV which is financed by Portuguese funds from FCT/MEC (UID/QUI/50006/2013) and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER- 007265), and to the general funds of PROTEOMASS Scientific Society. E. O. thanks to the FCT-MEC Portugal by the grant number SFRH/BPD/108660/2015. S. M. S. acknowledges the financial support from CICECO-Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (FCT Ref. UID/CTM/50011/2013), financed by Portuguese funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement, and the IF program (IF/00973/2014) from FCT. S. H. P. S. acknowledges the financial support from CNPq and FAPESP.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - A new fluorescent probe based on Tellurium-Rhodamine (TR) was designed, synthetized and fully characterized by 1H NMR, 13C NMR, 125Te NMR, HRMS, IR and single crystal X-ray diffraction. A mechanism of Hg2+ detection, based on the oxidation of tellurium by Hg2+ was observed and fully understood. The new monomer chemosensor TR shows a high fluorescent quantum yield Φ = 0.41, excellent selectivity and good sensibility towards Hg2+, with a limit of detection of 2.95 μmol/L.
AB - A new fluorescent probe based on Tellurium-Rhodamine (TR) was designed, synthetized and fully characterized by 1H NMR, 13C NMR, 125Te NMR, HRMS, IR and single crystal X-ray diffraction. A mechanism of Hg2+ detection, based on the oxidation of tellurium by Hg2+ was observed and fully understood. The new monomer chemosensor TR shows a high fluorescent quantum yield Φ = 0.41, excellent selectivity and good sensibility towards Hg2+, with a limit of detection of 2.95 μmol/L.
KW - Fluorescent sensor
KW - Mercury
KW - Naked-eye
KW - Rhodamine
KW - Telluroxide
UR - http://www.scopus.com/inward/record.url?scp=85051461622&partnerID=8YFLogxK
U2 - 10.1016/j.dyepig.2018.07.055
DO - 10.1016/j.dyepig.2018.07.055
M3 - Article
AN - SCOPUS:85051461622
VL - 160
SP - 208
EP - 216
JO - Dyes And Pigments
JF - Dyes And Pigments
SN - 0143-7208
ER -