Nested [Na6(H2O)]6+ encapsulation of nickel(II) coordination framework assembled from pyridyl-2,6-dicarboxylic acid

Two novel metal-organic frameworks [Zn 2 (Dpq) 2 (2,5-pda) 2 (H 2 O) 2 ]•2H 2 O (1) (dipyrazino[2,3-f:2′3′-h]quino-xaline＝Dpq) and [Cd 2 (Dpq) 2 (2,5-pda) 2 ]•2H 2 O (2) (pyridine-2,5-dicarboxylic acid＝2,5-H 2 pda) have been obtained from hydrothermal reactions of two different metal(II) nitrates with the same mixed ligands Dpq and 2,5-H 2 pda, and structurally characterized by elemental analyses, TG, IR spectroscopy, and single-crystal X-ray diffraction analyse. Single-crystal X-ray analyses show that the metal ions are bridged by different coordination modes of 2,5-pda to form a dimer in 1, 2D rhombic grid in 2, respectively. In the compound 1, adjacent dimers are packed through hydrogen bonds and π-π aromatic stacking interactions to form a distorted α-Po supramolecular structure. In the compound 2, adjacent polymer layers are further linked by hydrogen bonds to form a distorted α-Po 3D supramolecular framework stabilized by π-π stacking interactions. The different structures of compounds 1 and 2 illustrate the influence of the metal ions and ligands on the self-assembly of polymeric coordination architectures. In addition, the title compounds exhibit blue emission in the solid state at room temperature.

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Hydrothermal Synthesis, Crystal Structures and Photoluminescence of Two Novel Metal‐organic Supramolecular Frameworks Based on Mixed Ligands of Dipyrazino[2,3‐f:2′,3′‐h]quinoxaline and Pyridine‐2,5‐dicarboxylic Acid

Wang

Liu

Huang

et al. 2008

Chin. J. Chem.

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Synthesis, characterization and crystal structure of Ni(II) coordination polymer with 1,3,5 benzenetricarboxylic acid and 2,2′-bipyridine ligands

Hamidipour¹,

Kubicki²,

Farzaneh³

et al. 2013

Inorganic Chemistry Communications

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A novel coordination polymer of Ni(II) based on 1,3,5-benzenetricarboxylic acid synthesis, characterization, crystal structure, thermal study, and luminescent properties

Saheli

Rezvani

2017

Journal of Molecular Structure

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Nested [Na6(H2O)]6+ encapsulation of nickel(II) coordination framework assembled from pyridyl-2,6-dicarboxylic acid

Cited by 4 publications

References 24 publications

Hydrothermal Synthesis, Crystal Structures and Photoluminescence of Two Novel Metal‐organic Supramolecular Frameworks Based on Mixed Ligands of Dipyrazino[2,3‐f:2′,3′‐h]quinoxaline and Pyridine‐2,5‐dicarboxylic Acid

Hydrothermal Synthesis, Crystal Structures and Photoluminescence of Two Novel Metal‐organic Supramolecular Frameworks Based on Mixed Ligands of Dipyrazino[2,3‐f:2′,3′‐h]quinoxaline and Pyridine‐2,5‐dicarboxylic Acid

Synthesis, characterization and crystal structure of Ni(II) coordination polymer with 1,3,5 benzenetricarboxylic acid and 2,2′-bipyridine ligands

A novel coordination polymer of Ni(II) based on 1,3,5-benzenetricarboxylic acid synthesis, characterization, crystal structure, thermal study, and luminescent properties

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