A field induced high-spin molecule: {Fe(II)-Fe(III)6} cluster

Research output: Contribution to journal › Conference article › Research › peer review

Authors

  • L'ubor Dlháň
  • Milan Gembický
  • Radovan Herchel
  • Roman Boča
  • Franz Renz

External Research Organisations

  • Slovak University of Technology in Bratislava
  • Johannes Gutenberg University Mainz
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Details

Original languageEnglish
Pages (from-to)147-152
Number of pages6
JournalSolid State Phenomena
Volume90-91
Publication statusPublished - 2003
Externally publishedYes
Event5th International Conference on Solid State - Bratislava, Slovakia
Duration: 7 Jul 2002 → 12 Jul 2002

Abstract

A blue heptanuclear complex [FeII{(CN)FeIII(5L)}6]Cl2 resulted by combining the mononuclear precursor [FeIII(5L)Cl] and [Fe(CN)6]4-. In the role of the pentadentate blocking ligand the Schiff-condensation product of 1,7-diamino-4-azaheptane with the salicyaldehyde has been used. The mixed-valence cluster has been characterized by its Mössbauer spectra and the powder diffraction patterns. The magnetization measurements until B = l T indicate S = 6 ground state. The susceptibility has been fitted with J/k = -0.0284 K, g = 1.825 when all 46656 magnetic states of the cluster are considered assuming that six s = 5/2 centers take part in the exchange coupling. With such a small exchange coupling constant the ground S = 0 molecular state is crossed by the Zeeman term so that the molecular ground state depends upon the magnetic field strength, progressively reaching the maximum value S = 15 for large field/temperature ratio.

Keywords

    Fe(II)-Fe(III), Heptanuclear complex, High-spin molecule, Magnetic susceptibility, Magnetization, Mössbauer spectra

ASJC Scopus subject areas

Cite this

A field induced high-spin molecule: {Fe(II)-Fe(III)6} cluster. / Dlháň, L'ubor; Gembický, Milan; Herchel, Radovan et al.
In: Solid State Phenomena, Vol. 90-91, 2003, p. 147-152.

Research output: Contribution to journal › Conference article › Research › peer review

Dlháň, L, Gembický, M, Herchel, R, Boča, R & Renz, F 2003, 'A field induced high-spin molecule: {Fe(II)-Fe(III)6} cluster', Solid State Phenomena, vol. 90-91, pp. 147-152.
Dlháň, L., Gembický, M., Herchel, R., Boča, R., & Renz, F. (2003). A field induced high-spin molecule: {Fe(II)-Fe(III)6} cluster. Solid State Phenomena, 90-91, 147-152.
Dlháň L, Gembický M, Herchel R, Boča R, Renz F. A field induced high-spin molecule: {Fe(II)-Fe(III)6} cluster. Solid State Phenomena. 2003;90-91:147-152.
Dlháň, L'ubor ; Gembický, Milan ; Herchel, Radovan et al. / A field induced high-spin molecule : {Fe(II)-Fe(III)6} cluster. In: Solid State Phenomena. 2003 ; Vol. 90-91. pp. 147-152.
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title = "A field induced high-spin molecule: {Fe(II)-Fe(III)6} cluster",
abstract = "A blue heptanuclear complex [FeII{(CN)FeIII(5L)}6]Cl2 resulted by combining the mononuclear precursor [FeIII(5L)Cl] and [Fe(CN)6]4-. In the role of the pentadentate blocking ligand the Schiff-condensation product of 1,7-diamino-4-azaheptane with the salicyaldehyde has been used. The mixed-valence cluster has been characterized by its M{\"o}ssbauer spectra and the powder diffraction patterns. The magnetization measurements until B = l T indicate S = 6 ground state. The susceptibility has been fitted with J/k = -0.0284 K, g = 1.825 when all 46656 magnetic states of the cluster are considered assuming that six s = 5/2 centers take part in the exchange coupling. With such a small exchange coupling constant the ground S = 0 molecular state is crossed by the Zeeman term so that the molecular ground state depends upon the magnetic field strength, progressively reaching the maximum value S = 15 for large field/temperature ratio.",
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year = "2003",
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note = "5th International Conference on Solid State ; Conference date: 07-07-2002 Through 12-07-2002",

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Download

TY - JOUR

T1 - A field induced high-spin molecule

T2 - 5th International Conference on Solid State

AU - Dlháň, L'ubor

AU - Gembický, Milan

AU - Herchel, Radovan

AU - Boča, Roman

AU - Renz, Franz

PY - 2003

Y1 - 2003

N2 - A blue heptanuclear complex [FeII{(CN)FeIII(5L)}6]Cl2 resulted by combining the mononuclear precursor [FeIII(5L)Cl] and [Fe(CN)6]4-. In the role of the pentadentate blocking ligand the Schiff-condensation product of 1,7-diamino-4-azaheptane with the salicyaldehyde has been used. The mixed-valence cluster has been characterized by its Mössbauer spectra and the powder diffraction patterns. The magnetization measurements until B = l T indicate S = 6 ground state. The susceptibility has been fitted with J/k = -0.0284 K, g = 1.825 when all 46656 magnetic states of the cluster are considered assuming that six s = 5/2 centers take part in the exchange coupling. With such a small exchange coupling constant the ground S = 0 molecular state is crossed by the Zeeman term so that the molecular ground state depends upon the magnetic field strength, progressively reaching the maximum value S = 15 for large field/temperature ratio.

AB - A blue heptanuclear complex [FeII{(CN)FeIII(5L)}6]Cl2 resulted by combining the mononuclear precursor [FeIII(5L)Cl] and [Fe(CN)6]4-. In the role of the pentadentate blocking ligand the Schiff-condensation product of 1,7-diamino-4-azaheptane with the salicyaldehyde has been used. The mixed-valence cluster has been characterized by its Mössbauer spectra and the powder diffraction patterns. The magnetization measurements until B = l T indicate S = 6 ground state. The susceptibility has been fitted with J/k = -0.0284 K, g = 1.825 when all 46656 magnetic states of the cluster are considered assuming that six s = 5/2 centers take part in the exchange coupling. With such a small exchange coupling constant the ground S = 0 molecular state is crossed by the Zeeman term so that the molecular ground state depends upon the magnetic field strength, progressively reaching the maximum value S = 15 for large field/temperature ratio.

KW - Fe(II)-Fe(III)

KW - Heptanuclear complex

KW - High-spin molecule

KW - Magnetic susceptibility

KW - Magnetization

KW - Mössbauer spectra

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M3 - Conference article

AN - SCOPUS:0038059090

VL - 90-91

SP - 147

EP - 152

JO - Solid State Phenomena

JF - Solid State Phenomena

SN - 1012-0394

Y2 - 7 July 2002 through 12 July 2002

ER -