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n--thiazole-2-yl--picolinamide
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Development of a novel carboxamide-based off-on switch fluorescence sensor: Hg2+, Zn2+and Cd2+
, Article New Journal of Chemistry ; Volume 44, Issue 27 , June , 2020 , Pages 11841-11852 ; Bagherzadeh, M ; Meghdadi, S ; Rabiee, N ; Abbasi, A ; Schenk Joß, K ; Tahriri, M ; Tayebi, L ; Webster, T. J ; Sharif University of Technology
Royal Society of Chemistry
2020
Abstract
Here, the carboxamide ligand N-(thiazole-2-yl) picolinamide (L) was synthesized in an ionic liquid tetrabutylammonium bromide (TBAB) as the benign reaction medium. The sensitivity of L towards different metal-ions was investigated, and a comprehensive, logical optical investigation was conducted for the IIB transition metal ions, Hg2+, Cd2+ and Zn2+, based on off-on switch sensor protocols. In the absence of these metal ions, L showed weak emission only, but fluorescence intensity increased considerably upon their addition to a sensitivity range of 10-6 M. This phenomenon was enhanced significantly in the presence of Zn2+ compared to other metal ions, likely due to the coordination of...
Synthesis, characterisation and crystal structure of a new Cu(II)-carboxamide complex and CuO nanoparticles as new catalysts in the CuAAC reaction and investigation of their antibacterial activity
, Article Inorganica Chimica Acta ; Volume 506 , June , 2020 ; Bagherzadeh, M ; Meghdadi, S ; Fadaei Tirani, F ; Babaie, M ; Schenk Joß, K ; Sharif University of Technology
Elsevier S. A
2020
Abstract
The bidentate carboxamide ligand N-(thiazole-2-yl) picolinamide (LH) was synthesized in the environmentally friendly ionic liquid TBAB, and the five-coordinated CuII-complex, [Cu(L)2(H2O)].CHCl3 (1) was synthesized from LH and copper(II)acetate. Cupric oxide [CuO] nanoparticles (2) have been prepared by the thermal decomposition of (1) as a new precursor at 600 °C for 3 h under air atmosphere. (1) was characterised using FT-IR spectroscopy, elemental analyses and its solid state structure was confirmed by single crystal X-ray diffraction. (2) were identified by FT-IR spectroscopy, X-ray powder diffraction, scanning electron microscopy, energy dispersive X-ray analysis and thermo-gravimetric...