期刊
NEW JOURNAL OF CHEMISTRY
卷 43, 期 8, 页码 3513-3519出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nj05194a
关键词
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资金
- UGC, New Delhi, India
We successfully designed and developed a rhodamine based turn-on chemosensor L for the detection of Pd2+ ions down to 1.19 x 10(-5) M (11.9 mu M). In organo-aqueous solution, probe L displayed highly selective and sensitive colorimetric and fluorescence responses toward Pd2+ based on the ring-opening mechanism of the rhodamine spirolactam ring upon complexation with Pd2+. In the presence of Pd2+ ions, probe L formed an L-Pd2+ complex in 1:1 stoichiometry which was confirmed by the Job plot and mass spectroscopy. Moreover, we performed DFT (density functional theory) studies to identify the coordination characteristics and binding nature of L and the L-Pd2+ complex. In addition, cell imaging experiments revealed that probe L was able to permeate cells, and able to image Pd2+ in living cells.
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