1403/01/09
رحمان حسین زاده

رحمان حسین زاده

مرتبه علمی: استاد
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس:
دانشکده: دانشکده شیمی
نشانی: بابلسر- دانشگاه مازندران-دانشکده شیمی-گروه شیمی آلی
تلفن: 01135302356

مشخصات پژوهش

عنوان
A new and efficient pyridine-2,6-dicarboxamide-based fluorescent and colorimetric chemosensor for sensitive and selective recognition of Pb2+ and Cu2+
نوع پژوهش
JournalPaper
کلیدواژه‌ها
Fluorescent sensor; Pyridine-2,6-dicarboxamide; Fluorene; Cu2+ Pb2+
سال
2021
مجله JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
شناسه DOI
پژوهشگران Hannaneh Rahimi ، Rahman Hosseinzadeh ، mahmood tajbakhsh

چکیده

A new fluorene-bearing pyridine-2,6-dicarboxamide (3) as an effectint fluorescent and colorimetric cation sensor was successfully synthesized and well-characterized using FT-IR, NMR, ESI+-MS and elemental analysis. The metal ion binding ability of the chemosensor 3 in the presence of different metal ions was investigated using UV–vis, fluorescence experiments and results exhibited a desirable selectivity and significant sensitivity of the chemosensor 3 for the detection of Cu2+ and Pb2+ ions. The association constant (Ka) of 3-Cu2+ and 3-Pb2+ complexes were determined to be 8.89 × 103 M− 1 and 5.65 × 108 M-2, respectively. The obtained limit of detection (LOD) values (1.49 × 10− 6 M for Cu2+ and 2.31 × 10− 6 M for Pb2+) clearly revealed the considerable sensitivity of the chemosensor 3.