شیمى کاربردى روز

شیمى کاربردى روز

سنتز و شناسایی کمپلکس‌های نقره(I) شامل 2، '2: '6، ''2-ترپیریدین- 1، "1-دی‌اکسید: خواص حرارتی، فوتولومینسانس و کاربرد به‌عنوان حسگر شیمیایی

نوع مقاله : مقاله علمی پژوهشی

نویسندگان
1 گروه شیمی معدنی، دانشکده شیمی، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران
2 دانشکده شیمی، دانشگاه بازل، سنت یوهان رینگ ۱۹، ۴۰۵۶ بازل، سویس
چکیده
از واکنش نقره نیترات و 2،'2:'6،"2-ترپیریدین-1،"1-دی‌اکسید (tpyO2) با نسبت مولی 1:1 کمپلکس‌ نقره‌‌‌‌‌(I) (۱) [Ag(tpyO2)(H2O)]NO3.H2O تشکیل شد. از طرفی دیگر، از واکنش نقره نیترات با tpyO2 در حضور KSCN‌ کمپلکس (2) [Ag(tpyO2)(SCN)].2H2O تهیه شد. کمپلکس‌‌های حاصل به وسیله‌ی تجزیه‌عنصری، FTIR، طیف‌سنجی رزونانس مغناطیسی هسته NMR شناسایی شدند. بررسی پایداری حرارتی کمپلکس‌های 1 و 2 نشان دادند، که کمپلکس 1 تا دمای °C150 و کمپلکس 2 تا دمای°C 80 پایداری حرارتی خود را حفظ می‌کنند. خواص فلورسانس کمپلکس‌های 1 و 2 درآب و در درجه حرارت اتاق بررسی شد. خواص لومینسانس سیستم‌های d10 با پوسته پر شده مورد توجه ویژه‌ای است و موضوع تحقیقات مختلفی بوده است. طیف‌های فوتولومینسانس برای کمپلکس‌های ۱ و ۲ در حضور و غیاب یون‌های فلزی خاص ثبت شدند. خواص حسگری کمپلکس‌های ۱ و ۲ نسبت به یون‌های فلزی مختلف بررسی شد که نشان داد که کمپلکس‌های ۱ و ۲ حساسیت بیشتری نسبت به یون‌ کادمیم نشان می‌دهند.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Synthesis and characterization of silver(I) complex containing 2,,2′:6′,2′′-terpyridine-1,1′′-dioxide: Thermal, photoluminescence properties and applications

نویسندگان English

Badri Zaman Momeni 1
Shaghayegh Zolghadri 1
Reza Fallahpour 2
1 Department of Inorganic Chemistry, Faculty of Chemistry, K.N. Toosi University of Technology, Tehran, Iran
2 Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
چکیده English

The reaction of silver nitrate with a substituted terpyridine ligand was investigated. The reaction of silver nitrate with 2,2':6',2''-terpyridine-1,1"-dioxide (tpyO2) in a 1:1 molar ratio resulted in the formation of the silver(I) complex [Ag(tpyO2)(H2O)]NO3•H2O (1). Moreover, the reaction of silver nitrate with 1,1"-dioxide-2,2':6',2''-terpyridine in the presence of KSCN led to the formation of complex [Ag(tpyO2)(SCN)]•2H2O (2). The products were characterized using IR, elemental analysis, multinuclear NMR spectroscopy, UV-Vis, and fluorescence spectroscopy. Thermal stability analysis of the complexes 1 and 2 revealed that the complexes [Ag(tpyO2)(H2O)]NO3•H2O and [Ag(tpyO2)(SCN)]•2H2O are stable up to 150 °C and 80 °C, respectively. The luminescent properties of the filled-shell d10 systems are of particular interest and have been the subject of various studies. The photoluminescence spectra for complexes 1 and 2 were recorded in the presence and absence of the specific metal ions. The sensing properties of 1 and 2 towards different metal ions were investigated, indicating that 1 and 2 exhibited greater sensitivity towards the Cd2+ ion than towards the other metal ions.

کلیدواژه‌ها English

Silver(I)
Terpyridine
NMR
photoluminescence properties
Chemosensor
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