Anion Dependent Self-Assembly of Polynuclear Cd-Ln Schiff Base Nanoclusters: NIR Luminescent Sensing of Nitro Explosives

• Published in: Frontiers in chemistry Vol. 7; p. 139
• Main Authors: Chen, Hongfen, Yang, Xiaoping, Jiang, Weizhong, Jiang, Dongmei, Shi, Dongliang, Yuan, Bichen, Wang, Fei, Zhang, Lijie, Huang, Shaoming
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers Media S.A 20.03.2019
• Subjects: Chemistry; nanoclusters; NIR lanthanide luminescence; schiff base ligand; self-assembly; sensing of nitro explosives; self-assembly; nanoclusters; sensing of nitro explosives; schiff base ligand; NIR lanthanide luminescence
• ISSN: 2296-2646; 2296-2646
• DOI: 10.3389/fchem.2019.00139

Two types of polynuclear Cd-Ln complexes [CdLnL(NO )Cl (DMF) ] [Ln = La ( ) and Nd ( )] and [Ln CdL (NO ) (DMF) ](OH) [Ln = La ( ) and Nd ( )] were constructed using a new Schiff base ligand which has a long backbone with two phenyl groups. The Schiff base ligands show a "twist" configuration in - . The crystal structures show that the molecular dimensions of and are about 6 × 10 × 15 Å. The Cd-Nd complexes and exhibit the typical NIR luminescence of Nd . Interestingly, shows the luminescent sensing of nitro explosives and exhibits a high sensitivity to 2-nitrophenol at the ppm level.