A novel ratiometric fluorescent Yb3+ sensor based on a N′-(1-oxoacenaphthylen-2(1H)-ylidene)furan-2-carbohydrazide as a suitable fluorophore
✍ Scribed by Morteza Hosseini; Mohammad Reza Ganjali; Bahareh Veismohammadi; Parviz Norouzi; Kamal Alizadeh; Shiva Dehghan Abkenar
- Book ID
- 103847632
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 652 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0928-4931
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✦ Synopsis
N′-(1-oxoacenaphthylen-2(1H)-ylidene)furan-2-carbohydrazide (L) was synthesized for the first time and used as a ratiometric fluorescent chemosensor for high selective recognition of Yb 3+ ions in acetonitrile (MeCN) solution. The L-Yb 3+ complexation quench the fluorescence of L at 420 nm and induces new fluorescent enhancement at 516 nm. Due to the formation of a 2:1 metal ligand complex in acetonitrile solution, the red shift of fluorescent emission spectrum occurred. The sensor shows a linear response toward Yb 3+ ion concentration in the range of 3.3 × 10 -7 M to 1.0 × 10 -4 M with detection limit of 1.2 × 10 -7 M. The fluorescent probe exhibits high selectivity for Yb 3+ ion over the other common mono-, di-, and trivalent cations.