Fluorescence Chemosensor for HSO4 ?/sup> Ion Based on Pyrrole-Substituted Salicylimine Zn2+ Complex: Nanomolar Detection

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• 作者：Umesh Fegade ; Jitendra Bhosale ; Hemant Sharma ; Narinder Singh…
• 关键词：Pyrrole ; substituted salicylimine ; HSO4 ?Ratiometric ; Quenching
• 刊名：Journal of Fluorescence
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：25
• 期：4
• 页码：819-824
• 全文大小：2,298 KB
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• 作者单位：Umesh Fegade (1)
  Jitendra Bhosale (1)
  Hemant Sharma (2)
  Narinder Singh (2)
  Ratnamala Bendre (1)
  Anil Kuwar (1)
  
  1. School of Chemical Sciences, North Maharashtra University, Jalgaon, MS, 425001, India
  2. Department of Chemistry, Indian Institute of Technology, Ropar, Rupanagar, Punjab, India
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Biomedicine
  Biomedicine
  Biophysics and Biomedical Physics
  Biotechnology
  Biochemistry
  Analytical Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1573-4994

文摘

A novel pyrrole-substituted salicylimine zinc (II) ion complex has been synthesized and evaluated its anion binding affinity. The probe 4 has high selectivity for HSO4 ?/sup> over other anions in CH3OH:H2O (70:30, v/v) solvent system. The emission intensity of 4 was quenched upon addition of HSO4 ?/sup>. The probe 4 is highly selective for HSO4 ?/sup> with a detection limit of 40?nm. Photoinduced electron transfer (PET) is responsible for observed change. The binding affinity of 4 for HSO4 ?/sup> was further authenticated through ratiometric change in absorbance profile.