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Cation sensing by luminescent high-nuclearity Zn–Eu Schiff base nanoscale complexes: high sensitivity to Ag+ and Cd2+ ions at the ppm level.
- Source :
-
Dalton Transactions: An International Journal of Inorganic Chemistry . 2/14/2019, Vol. 48 Issue 6, p2206-2212. 7p. - Publication Year :
- 2019
-
Abstract
- Three polynuclear Zn–Ln nanoscale complexes [Ln2Zn2(L1)2(OAc)6] (Ln = Eu (1) and Nd (2)) and [Eu6Zn6(L2)2(L3)2O2(OAc)18] (3) were constructed using two Schiff base ligands featuring Ph(CH2)Ph (H2L1) and naphthyl (H2L2) backbones. The use of the Schiff base ligand H2L1 leads to the formation of linear complexes 1 and 2 with molecular sizes of approximately 7 × 10 × 24 Å, while planar complex 3 (approximately 10 × 15 × 22 Å) is constructed from H2L2. In 1–3, the chromogenic Zn/ligand moieties can absorb energy from and transfer energy to lanthanide centers, and all of these complexes display the typical emissions of Ln3+ ions. Interestingly, 3 displays luminescence response to the addition of metal ions and has high sensitivity to Ag+ and Cd2+ ions at the ppm level. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CATIONS
*METAL complexes
*LUMINESCENCE
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 48
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 134540102
- Full Text :
- https://doi.org/10.1039/c8dt04942d