5.2.1. Synthesis, characterization and 2,5-pyridinedicarboxylic acid interaction of Zinc(II) complexes with N-(4-X-phenyl)pyridine-2-yl -methanimine ligands (X= -Cl and -N(CH3)2)

Nicole Dinamarca¹, Pedro Levín¹, Hugo Muñoz¹, Francesco Caruso², Miriam Rossi², Juan Guerrero¹ and Manuel Ignacio Azócar¹*.


¹Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Av. L. B. O`Higgins 3363, Casilla 40, Correo 33, Santiago Chile. ²Vassar College, Department of Chemistry, Poughkeepsie, NY 12604, USA. *e-mail: manuel.azocar@usach.cl

Received: September 01, 2017; accepted: October 25, 2017

Abstract: Two new Zn(II) N-(4-X-phenyl)pyridine-2-yl-methanimine complexes, [Zn(NN´-Cl)Cl2](1) and [Zn(NN´-N(CH3)2)Cl2](2), have been synthesized and characterized by elemental analysis, FT-IR and NMR-1H spectra. The crystal structure of complex 1 was determined by X-ray single crystal diffraction. Experiments performed by Benesi-Hilderbrand method indicate that zinc complexes interact with 2,5-pyridinedicarboxyc acid.


Supporting information: CIF file


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4.3.1 Self-assembly of two New Zinc coordination Polymers Based on N-[(3-Pyridine)-sulfonyl]amino Acid: Structure and Fluorescence


Pei Luo1, Shi-Xiong Li1, 2, Yi-Min Jiang1*

1 College of Chemistry and Pharmacy, Guangxi Normal University, Guilin, 541004, P.R. China

2College of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China

Address correspondence to Yi-Min Jiang, College of Chemistry and Pharmacy, Guangxi Normal University.

Corresponding author e-mail: 790223684@qq.com

Received: May 13, 2016; accepted: July 11, 2016

Abstract:  Two new zinc coordination polymers based on N-[(3-Pyridine)-sulfonyl]amino acid ligand have been synthesized and characterized by single-crystal X-ray diffraction and elemental analysis. The results show that the 1 is a two-dimensional structure coordination polymer and synthesized under room temperature condition; the 2 is a three-dimensional structure coordination polymer and synthesized under hydrothermal synthesis condition. These two structures are formed by 4,4′-dipyridy and 4,4′-azpy for 1 and 2, respectively. A structural comparison of these two coordination polymers suggests that different reaction temperatures play important role in the construction of resulting architectures of 1 and 2. Fluorescence measurements show that 1 has medium fluorescent emission at 374 nm and 2 has medium fluorescent emission at 438 nm.

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