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Article

The Positional Isomeric Effect on the Structural Diversity of Cd(II) Coordination Polymers, Using Flexible Positional Isomeric Ligands Containing Pyridyl, Triazole, and Carboxylate Fragments

by
Jonathan Cisterna
1,
Catherine Araneda
1,
Pilar Narea
1,
Alejandro Cárdenas
2,
Jaime Llanos
3 and
Iván Brito
1,*
1
Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta 1240000, Chile
2
Departamento de Física, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta 1240000, Chile
3
Departamento de Química, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta 1240000, Chile
*
Author to whom correspondence should be addressed.
Molecules 2018, 23(10), 2634; https://doi.org/10.3390/molecules23102634
Submission received: 7 September 2018 / Revised: 1 October 2018 / Accepted: 10 October 2018 / Published: 14 October 2018
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Abstract

To systematically investigate the influence of the positional isomeric effect on the structures of polymer complexes, we prepared two new polymers containing the two positional isomers ethyl 5-methyl-1-(pyridin-3-yl)-1H-1,2,3-triazole-3-carboxylate (L1) and ethyl-5-methyl-1-(pyridin-3-yl)-1H-1,2,3-triazole-4-carboxylate (L2), as well as Cd(II) ions. The structures of the metal–organic frameworks were determined by a single crystal XRD analysis. The compound [Cd(L1)2·4H2O] (1), is a hydrogen bond-induced coordination polymer, whereas the compound [Cd(L2)4·5H2O]n (2) is a three-dimensional (3-D) coordination polymer. Their structures and properties are tuned by the variable N-donor positions of the ligand isomers. This work indicates that the isomeric effect of the ligand isomers plays an important role in the construction of the Cd(II) complexes. In addition, the thermal and luminescent properties are reported in detail.
Keywords: metal-organic frameworks; Cd(II) complexes; X-ray diffraction analysis; thermal properties; luminescence metal-organic frameworks; Cd(II) complexes; X-ray diffraction analysis; thermal properties; luminescence
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MDPI and ACS Style

Cisterna, J.; Araneda, C.; Narea, P.; Cárdenas, A.; Llanos, J.; Brito, I. The Positional Isomeric Effect on the Structural Diversity of Cd(II) Coordination Polymers, Using Flexible Positional Isomeric Ligands Containing Pyridyl, Triazole, and Carboxylate Fragments. Molecules 2018, 23, 2634. https://doi.org/10.3390/molecules23102634

AMA Style

Cisterna J, Araneda C, Narea P, Cárdenas A, Llanos J, Brito I. The Positional Isomeric Effect on the Structural Diversity of Cd(II) Coordination Polymers, Using Flexible Positional Isomeric Ligands Containing Pyridyl, Triazole, and Carboxylate Fragments. Molecules. 2018; 23(10):2634. https://doi.org/10.3390/molecules23102634

Chicago/Turabian Style

Cisterna, Jonathan, Catherine Araneda, Pilar Narea, Alejandro Cárdenas, Jaime Llanos, and Iván Brito. 2018. "The Positional Isomeric Effect on the Structural Diversity of Cd(II) Coordination Polymers, Using Flexible Positional Isomeric Ligands Containing Pyridyl, Triazole, and Carboxylate Fragments" Molecules 23, no. 10: 2634. https://doi.org/10.3390/molecules23102634

APA Style

Cisterna, J., Araneda, C., Narea, P., Cárdenas, A., Llanos, J., & Brito, I. (2018). The Positional Isomeric Effect on the Structural Diversity of Cd(II) Coordination Polymers, Using Flexible Positional Isomeric Ligands Containing Pyridyl, Triazole, and Carboxylate Fragments. Molecules, 23(10), 2634. https://doi.org/10.3390/molecules23102634

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