A novel highly selective colorimetric sensor for Cu(II) ion using azoazomethine derivatives
محل انتشار: بیستمین سمینار شیمی معدنی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 386
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شناسه ملی سند علمی:
IICC20_114
تاریخ نمایه سازی: 2 تیر 1398
چکیده مقاله:
The development of highly sensitive and selective probes for the sensing and recognition of environmentally and biologically important ionic species, especially metal ions, has been of great interest in recent years [1]. Among the metal ions, the design and synthesis of sensitive and selective probes for the detection of Cu2+ has attracted much attention, as it is the third most abundant essential trace element after iron and zinc in biological systms and plays a vital role in a variety of fundamental physiological processes in organisms ranging from bacteria to mammals[2].Copper is an essential nutrient for life and its homeostasis is connected to severe diseases such as Menkes, Wilson and Alzheimer’s disease [3]. In the present work, we have developed a novel azo–azomethine receptor, for colorimetriction of Cu2+ ions. To reach receptor L, 5-(4-CH3-phenyl)-azo-salicylaldehyde was introduced into the naphthol skeleton to afford effective metal binding sites via nitrogen and oxygen heteroatoms. The new receptor was characterized by IR, 1H NMR and mass spectrometry. To investigate the selectivity of receptor L, the UV–Vis absorption spectral behavior upon addition of metal ions was monitored. The proposed sensor shows a reasonable discrimination ability towards Cu2+ ion in comparison to some alkali, alkaline earth transition and heavy metal ions (Fig.1). The resulting Cu(II)-complex was characterized by IR and mass spectrometry
نویسندگان
Samira Gholizadeh dogah eh
School of chemistry, College of Science,University of Thehran, Tehran
Janet Soleimannejad
School of chemistry, College of Science,University of Thehran, Tehran