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

ABSTRACT: Two types of polynuclear Cd-Ln complexes [CdLnL(NO3)Cl2(DMF)2] [Ln = La (1) and Nd (2)] and [Ln2CdL2(NO3)2(DMF)2](OH)2 [Ln = La (3) and Nd (4)] 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 1-4. The crystal structures show that the molecular dimensions of 3 and 4 are about 6 × 10 × 15 Å. The Cd-Nd complexes 2 and 4 exhibit the typical NIR luminescence of Nd3+. Interestingly, 4 shows the luminescent sensing of nitro explosives and exhibits a high sensitivity to 2-nitrophenol at the ppm level.

SUBMITTER: Chen H 

PROVIDER: S-EPMC6435579 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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

Chen Hongfen H   Yang Xiaoping X   Jiang Weizhong W   Jiang Dongmei D   Shi Dongliang D   Yuan Bichen B   Wang Fei F   Zhang Lijie L   Huang Shaoming S  

Frontiers in chemistry 20190320

Two types of polynuclear Cd-Ln complexes [CdLnL(NO<sub>3</sub>)Cl<sub>2</sub>(DMF)<sub>2</sub>] [Ln = La (<b>1</b>) and Nd (<b>2</b>)] and [Ln<sub>2</sub>CdL<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>(DMF)<sub>2</sub>](OH)<sub>2</sub> [Ln = La (<b>3</b>) and Nd (<b>4</b>)] 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 <b>1</b>-<b>4</b>. The crystal structures show that the molecular dimension  ...[more]

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