Mono and Dinuclear Cadmium(II) Complexes with the Ligand cis-2,4,5-tri(2-pyridyl)imidazoline

Authors

  • José J. Campos-Gaxiola Instituto Tecnológico de Tijuana
  • Herbert Höpfl Universidad Autónoma del Estado de Morelos
  • Miguel Para-Hake Instituto Tecnológico de Tijuana

DOI:

https://doi.org/10.29356/jmcs.v51i1.1336

Keywords:

Pyridyl and imidazoline ligand, cadmium(II), crystal structure, mononuclear complex, dinuclear complex, non-covalent interactions

Abstract

Abstract. The polypyridyl ligand cis-2,4,5-tri(2-pyridyl)imidazoline (L) is found to form Cd(II) complexes of different nuclearity, [Cd(L)(NO3)2(MeOH)] (1) and [Cd(μ-L)Cl2]2 (2), behaving as a tridentate ligand. The X-ray diffraction analysis of 1 shows a mononuclear complex, while the structure of 2 consists of a dinuclear complex with two L ligands bridging the two metal centres. Intra and intermolecular hydrogen bonds are observed in 1 forming 1-D chains, as well as one intramolecular CH--π interaction. In 2 only one
intramolecular π-π interaction is observed.

 

Resumen. El ligando polipiridínico cis-2,4,5-tri(2-piridil)imidazolina (L) forma complejos de Cd(II) con diferente nuclearidad, [Cd(L)(NO3)2(MeOH)] (1) y [Cd(μ-L)Cl2]2 (2), comportándose de manera tridentada. La estructura de 1 muestra un complejo mononuclear, mientras que la de 2 consiste de un complejo dinuclear con L como puente entre dos centros metálicos. En 1 se observan enlaces de hidrógeno intramoleculares e intermoleculares formando cadenas 1-D, así como una interacción del tipo CH--π. En la estructura del complejo 2 se observa sólo una interacción del tipo π-π intramolecular.

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Author Biographies

José J. Campos-Gaxiola, Instituto Tecnológico de Tijuana

Centro de Graduados e Investigación

Herbert Höpfl, Universidad Autónoma del Estado de Morelos

Centro de Investigaciones Químicas

Miguel Para-Hake, Instituto Tecnológico de Tijuana

Centro de Graduados e Investigación

References

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Published

2020-07-31

Issue

Vol. 51 No. 1 (2007): Special Issue Fiftieth Anniversary of Revista de la Sociedad Química de México(Journal of the Mexican Chemical Society)

Section

Regular Articles

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