An azodye–rhodamine-based fluorescent and colorimetric probe specific for the detection of Pd2+ in aqueous ethanolic solution: synthesis, XRD characterization, computational studies and imaging in live cells. Issue 4 (24th December 2014)

• Record Type: Journal Article
• Authors: Mahapatra, Ajit Kumar; Manna, Saikat Kumar; Maiti, Kalipada; Mondal, Sanchita; Maji, Rajkishor; Mandal, Debasish; Mandal, Sukhendu; Uddin, Md. Raihan; Goswami, Shyamaprosad; Quah, Ching Kheng; Fun, Hoong-Kun
• Is Part Of: Analyst. Volume 140:Issue 4(2015)
• Page Start: 1229
• Page End: 1236
• Publication Date: 2014-12-24
• Subjects: Chemistry, Analytic -- Periodicals; 543
• DOI: 10.1039/c4an01575d
• Languages: English
• ISSNs: 0003-2654

Abstract

Abstract : An azodye–rhodamine hybrid colorimetric fluorescent probe (L ) has been designed and synthesized. Abstract : Azodye–rhodamine hybrid colorimetric fluorescent probe (L ) has been designed and synthesized. The structure ofL has been established based on single crystal XRD. It has been shown to act as a selective turn-on fluorescent chemosensor for Pd 2+ with >40 fold enhancement by exhibiting red emission among the other 27 cations studied in aqueous ethanol. The coordination features of the species of recognition have been computationally evaluated by DFT methods and found to have a distorted tetrahedral Pd 2+ center in the binding core. The probe (L ) has been shown to detect Pd up to 0.45 μM at pH 7.4. Furthermore, the probe can be used to image Pd 2+ in living cells.