Magnetic behavior of MnPS3 phases intercalated by [Zn 2L]2 (LH2: Macrocyclic ligand obtained by condensation of 2-hydroxy-5-methyl-1,3-benzenedicarbaldehyde and 1,2-diaminobenzene)

E. Spodine, P. Valencia-Gálvez, P. Fuentealba, J. Manzur, D. Ruiz, D. Venegas-Yazigi, V. Paredes-García, R. Cardoso-Gil, W. Schnelle, R. Kniep

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

10 Citas (Scopus)

Resumen

The intercalation of the cationic binuclear macrocyclic complex [Zn 2L]2 (LH2: macrocyclic ligand obtained by the template condensation of 2-hydroxy-5-methyl-1,3-benzenedicarbaldehyde and 1,2-diaminobenzene) was achieved by a cationic exchange process, using K 0.4Mn0.8PS3 as a precursor. Three intercalated materials were obtained and characterized: (Zn2L) 0.05K0.3Mn0.8PS3 (1), (Zn 2L)0.1K0.2Mn0.8PS3 (2) and (Zn2L)0.05K0.3Mn0.8PS 3 (3), the latter phase being obtained by an assisted microwave radiation process. The magnetic data permit to estimate the Weiss temperature θ of ≈-130 K for (1); ≈-155 K for (2) and ≈-130 K for (3). The spin canting present in the potassium precursor remains unperturbed in composite (3), and spontaneous magnetization is observed under 50 K in both materials. However composites (1) and (2) do not present this spontaneous magnetization at low temperatures. The electronic properties of the intercalates do not appear to be significantly altered. The reflectance spectra of the intercalated phases (1), (2) and (3) show a gap value between 1.90 and 1.80 eV, lower than the value observed for the K0.4Mn0.8PS3 precursor of 2.8 eV.

Idioma originalInglés
Páginas (desde-hasta)1129-1134
Número de páginas6
PublicaciónJournal of Solid State Chemistry
Volumen184
N.º5
DOI
EstadoPublicada - may 2011

Áreas temáticas de ASJC Scopus

  • Materiales electrónicos, ópticos y magnéticos
  • Cerámicos y compuestos
  • Física de la materia condensada
  • Química física y teórica
  • Química inorgánica
  • Química de los materiales

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Profundice en los temas de investigación de 'Magnetic behavior of MnPS<sub>3</sub> phases intercalated by [Zn <sub>2</sub>L]<sup>2</sup> (LH<sub>2</sub>: Macrocyclic ligand obtained by condensation of 2-hydroxy-5-methyl-1,3-benzenedicarbaldehyde and 1,2-diaminobenzene)'. En conjunto forman una huella única.

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