Synthesis, structure and physical properties of a low dimensional compound

Ramos Silva, M. ; Coutinho, J. T. ; Pereira, L. C. J. ; Martín-Ramos, P. (Universidad de Zaragoza) ; Waerenborgh, J. C.

Resumen: The crystal structure of (µ3-oxo)hexakis(cyanoacetato-¿O, O')(cyanoacetato-¿O)diaquatriiron(III) cyanoacetic acid shows the formation of trinuclear complexes in a hydrogen-bond network that bonds all the molecules in a 3D arrangement. For this complex, within whose clusters the whole magnetic interaction takes place, 57Fe Mössbauer spectroscopy shows that the Fe cations are in the S = 5/2 state in the temperature range 2–295 K. The asymmetric broadening of the absorption peaks below 80 K is consistent with strong antiferromagnetic interactions between the metal spins. The magnetization measurements also show the antiferromagnetic character of the spin ensemble and an ST = 1/2 magnetic ground state typical of triangular systems with similar J between Fe-Fe pairs.

Idioma: Inglés

DOI: 10.1016/j.saa.2016.06.037

Año: 2017

Publicado en: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 172 (2017), 9-13
ISSN: 1386-1425

Factor impacto JCR: 2.88 (2017)

Categ. JCR: SPECTROSCOPY rank: 7 / 42 = 0.167 (2017) - Q1 - T1

Factor impacto SCIMAGO: 0.648 - Instrumentation (Q1) - Spectroscopy (Q2) - Analytical Chemistry (Q2) - Atomic and Molecular Physics, and Optics (Q2)

Tipo y forma: Article (PostPrint)

Área (Departamento): Area Ingeniería Agroforestal (Dpto. CC.Agrar.y Medio Natural)