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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(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 dimension ...[more]

PMID: 30949472

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