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Versatile nuclearity in copper complexes with ortho functionalized 1,3-bis(aryl)triazenido ligands |
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| Authors: | Juan José Nuricumbo-Escobar,Fernando Rocha-Alonso,David Morales-Morales,Miguel Parra-Hake |
| Affiliation: | a Centro de Graduados e Investigación, Instituto Tecnológico de Tijuana, Apartado Postal 1166, Tijuana, B.C. 22000, Mexico b Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas, Campus Siglo XXI. Carretera a Guadalajara Km. 6, Ejido La Escondida, Zacatecas 98160, Mexico c Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior Cd. Universitaria Coyoacán, México D.F. 04510, Mexico d Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca 62209, Mexico |
| Abstract: | The synthesis, characterization and crystal structures of three new copper complexes derived from 1,3-bis(aryl)triazenido ligands bearing either a methoxycarbonyl, methylthio or a hydroxymethyl group in the ortho position of one of the aromatic rings are reported. In addition to the coordination of the triazenido fragment, the Lewis basic groups coordinate to the copper centers to form complexes with different nuclearity: {1-[2-(methoxycarbonyl)phenyl]-3-[4-methylphenyl]}triazene and {1-[2-(methylthio)phenyl]-3-[4-methylphenyl]}triazene form stable dinuclear and tetranuclear Cu(I) complexes, respectively. Reaction of {1-[2-(hydroxymethyl)phenyl]-3-[4-methylphenyl]}triazene with either Cu(I) or Cu(II) results in a novel Cu(II) hexanuclear macrocyclic complex. |
| Keywords: | Triazenido ligands Copper(I) Copper(II) Polynuclear complexes Coordination macrocycle |
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