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Luminescent Polynuclear Zn- and Cd-Ln Square-Like Nanoclusters With a Flexible Long-Chain Schiff Base Ligand.

ABSTRACT: Two series of Zn-Ln and Cd-Ln nanoclusters [Ln₄Zn₈L₂(OAc)₂₀(OH)₄] [Ln = Nd (1), Yb (2), and Sm (3)] and [Ln₂Cd₂L₂(OAc)₂(OH)₂(OCH₃)₂] [Ln = Nd (4), Yb (5), and Sm (6)] were prepared using a long-chain Schiff base ligand with a flexible (CH₂)₂O(CH₂)₂O(CH₂)₂ chain. All these clusters show square-like structures. The Schiff base ligands show "linear" configurations in the structures of 1-6, and the metric dimensions of Zn-Ln and Cd-Ln clusters measure ~8 × 14 × 21 and 8 × 12 × 12 Å, respectively. The study of luminescence properties shows that the Zn/L and Cd/L chromophores can effectively transfer energy to the lanthanide ions, and 1-6 show visible and NIR emissions.

SUBMITTER: Zhu T

PROVIDER: S-EPMC6080591 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Luminescent Polynuclear Zn- and Cd-Ln Square-Like Nanoclusters With a Flexible Long-Chain Schiff Base Ligand.

Zhu Ting T Yang Xiaoping X Zheng Xiaohui X Wang Shiqing S Bo Le L Wang Chengri C Chen Hongfen H Jiang Dongmei D Schipper Desmond D

Frontiers in chemistry 20180731

Two series of Zn-Ln and Cd-Ln nanoclusters [Ln4Zn8L2(OAc)20(OH)4] [Ln = Nd (1), Yb (2), and Sm (3)] and [Ln2Cd2L2(OAc)2(OH)2(OCH3)2] [Ln = Nd (4), Yb (5), and Sm (6)] were prepared using a long-chain Schiff base ligand with a flexible (CH2)2O(CH2)2O(CH2)2 chai ...[more]

PMID: 30109225

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