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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Nanomolar Detection of Palladium (II) through a Novel Seleno-Rhodamine-based fluorescent and colorimetric chemosensor

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Soares-Paulino, Antonio A. [1, 2] ; Giroldo, Lilian [1] ; Pradie, Noriberto A. [1] ; Reis, Joel S. [3] ; Back, Davi F. [4] ; Braga, Ataualpa A. C. [1] ; Stefani, Helio A. [3] ; Lodeiro, Carlos [5, 2] ; Dos Santos, Alcindo A. [1]
Total Authors: 9
[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil
[2] NOVA Univ Sch, NOVA Sci & Technol Sch, Chem Dept, BIOSCOPE Grp, LAQV REQUIMTE, P-2829516 Caparica - Portugal
[3] Univ Sao Paulo, Fac Ciencias Farmaceut, Dept Farm, Av Prof Lineu Prestes 580, BR-05508000 Sao Paulo, SP - Brazil
[4] Univ Fed Santa Maria, Dept Quim, Lab Mat Inorgan, Av Roraima 1000, BR-97105900 Santa Maria, RS - Brazil
[5] Proteomass Sci Soc, Rua Inventores, Madan Pk, P-2829516 Caparica - Portugal
Total Affiliations: 5
Document type: Journal article
Source: DYES AND PIGMENTS; v. 179, AUG 2020.
Web of Science Citations: 0

A novel reversible fluorescent probe for Pd2+ based on a rhodamine-containing selenide (Rh-Se) was designed, synthesized and fully characterized. The probe Rh-Se showed a high selectivity and sensitivity with a detection limit of 32 nM for Pd2+ ions. The formation of a complex Rh-Se/Pd2+ was confirmed by HRMS. DFT calculations revealed that the proposed square planar geometry is the most stable form of the metallic complex Rh-Se/Pd2+. The probe Rh-Se showed to have high potential for the detection of residual Pd2+ in synthetic cross-coupling products and simulated pharmaceutical Pd2+- contaminated products. (AU)

FAPESP's process: 15/01491-3 - Theoretical study of cross-coupling reactions: homogeneous and heterogeneous catalysis
Grantee:Ataualpa Albert Carmo Braga
Support Opportunities: Regular Research Grants
FAPESP's process: 14/25770-6 - New frontiers in cross-coupling reactions promoted by palladium: combining enantioselective catalysis, C-H activations, new materials and in flux reactions aiming at high efficiency and sustainability in synthetic processes
Grantee:Carlos Roque Duarte Correia
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 16/09579-0 - Synthesis of Organic Selenides and Tellurides for Detection and Interception of Endogenous Oxidants
Grantee:Alcindo Aparecido dos Santos
Support Opportunities: Regular Research Grants