Construction of NIR luminescent polynuclear lanthanide-based nanoclusters with sensing properties towards metal ions. Issue 39 (18th September 2018)

• Record Type: Journal Article
• Authors: Chen, Hongfen; Yang, Xiaoping; Jiang, Dongmei; Shi, Dongliang; Zhang, Lijie
• Is Part Of: Dalton transactions. Volume 47:Issue 39(2018)
• Page Start: 13880
• Page End: 13886
• Publication Date: 2018-09-18
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt03308k
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Two types of 4- and 9-metal lanthanide-based nanoclusters (Ln = Yb(iii ) and Er(iii )) were constructed and the 9-metal Yb(iii ) cluster shows interesting luminescent sensing of metal ions and exhibits high sensitivity to Cd 2+ and Co 2+ at ppm level. Abstract : Two types of 4- and 9-metal lanthanide-based nanoclusters [Ln2 Zn2 (L 1 )2 (OAc)6 ] (Ln = Yb (1 ) and Er (2 )) and [Yb9 L 2 (L 3 )2 (OAc)15 (OH)8 (H2 O)2 (DMF)] (3 ) were constructed using two Schiff base ligands that have long backbones with two and three phenyl groups. The molecular sizes of1–2 and3 are about 7 × 10 × 23 Å and 11 × 17 × 22 Å, respectively. These clusters exhibit typical NIR luminescence of lanthanide ions. Interestingly, 3 exhibits luminescent sensing of metal ions and exhibits high sensitivities towards Cd 2+ and Co 2+ ions at the ppm level.