Coordination polymers containing 1,3-Phenylenebis-((1H-1,2,4-triazol-1-yl)methanone) ligand: Synthesis and "-caprolactone polymerization behavior

Nestor J. Bello-Vieda, Ricardo A. Murcia, Alvaro Munõz-Castro, Mario A. MacIás, John J. Hurtado

Resultado de la investigación: Contribución a una revistaArtículo

3 Citas (Scopus)

Resumen

The reaction of isophthaloyl dichloride with 1H-1,2,4-triazole afforded the new ligand 1,3-phenylenebis(1,2,4-triazole-1-yl)methanone (1). A series of Co(II), Cu(II), Zn(II) and Ni(II) complexes were synthesized using 1 and then characterized by melting point analysis, elemental analysis, theoretical calculations, thermogravimetric analysis, X-ray powder diffraction, nuclear magnetic resonance, infrared and Raman spectroscopy. Experimental and computational studies predict the formation of coordination polymers (CPs). The cobalt and copper CPs and zinc(II) complex were found to be good initiators for the ring-opening polymerization of "-caprolactone (CL) under solvent-free conditions. 1H-NMR analysis showed that the obtained polymers of CL were mainly linear and had terminal hydroxymethylene groups. Differential scanning calorimetry showed that the obtained polycaprolactones had high crystallinity, and TGA showed that they had decomposition temperatures above 400 C. These results provide insight and guidance for the design of metal complexes with potential applications in the polymerization of CL.

Idioma originalInglés
Número de artículo1860
PublicaciónMolecules
Volumen22
N.º11
DOI
EstadoPublicada - 1 nov 2017
Publicado de forma externa

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  • Química orgánica

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