A pyrazolate-supported Fe3(μ3-O) core: Structural, spectroscopic, electrochemical, and magnetic study

Research output: Contribution to journal › Article › Research › peer review

Authors

  • Dalice Piñero
  • Peter Baran
  • Roman Boca
  • Radovan Herchel
  • Michael Klein
  • Raphael G. Raptis
  • Franz Renz
  • Yiannis Sanakis

External Research Organisations

  • University of Puerto Rico
  • Juniata College
  • Slovak University of Technology in Bratislava
  • Palacky University
  • University of SS Cyril and Methodius, Trnava
  • Johannes Gutenberg University Mainz
  • National Centre For Scientific Research Demokritos (NCSR Demokritos)
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Details

Original languageEnglish
Pages (from-to)10981-10989
Number of pages9
JournalInorganic chemistry
Volume46
Issue number26
Publication statusPublished - 24 Dec 2007
Externally publishedYes

Abstract

A comparison is made between the structural, spectroscopic, electrochemical, and magnetic properties of pyrazolate versus carboxylate complexes [Fe3(μ3(μ3O)(μ-LL) 6Cl3]2- containing the Fe3(μ 3-O)-motif. While the Fe3(μ3-O)-cores are structurally indistinguishable in the two types of complexes, their magnetic properties deviate from the expected values as a result of a through-pyrazole contribution to the overall antiferromagnetic exchange with J1/hc = -80.1 cm-1 and J2/hc = -72.4 cm-1, or J 1/hc = 70.6 cm-1 and J2/hc = -80.8 cm -1, (Hex = -J1(S1S2 + S2S3) - J2S1S3). The magnetic properties of the pyrazolate complexes are further tuned by an antisymmetric exchange interaction term.

ASJC Scopus subject areas

Cite this

A pyrazolate-supported Fe3(μ3-O) core: Structural, spectroscopic, electrochemical, and magnetic study. / Piñero, Dalice; Baran, Peter; Boca, Roman et al.
In: Inorganic chemistry, Vol. 46, No. 26, 24.12.2007, p. 10981-10989.

Research output: Contribution to journal › Article › Research › peer review

Piñero, D, Baran, P, Boca, R, Herchel, R, Klein, M, Raptis, RG, Renz, F & Sanakis, Y 2007, 'A pyrazolate-supported Fe3(μ3-O) core: Structural, spectroscopic, electrochemical, and magnetic study', Inorganic chemistry, vol. 46, no. 26, pp. 10981-10989. https://doi.org/10.1021/ic0701460
Piñero, D., Baran, P., Boca, R., Herchel, R., Klein, M., Raptis, R. G., Renz, F., & Sanakis, Y. (2007). A pyrazolate-supported Fe3(μ3-O) core: Structural, spectroscopic, electrochemical, and magnetic study. Inorganic chemistry, 46(26), 10981-10989. https://doi.org/10.1021/ic0701460
Piñero D, Baran P, Boca R, Herchel R, Klein M, Raptis RG et al. A pyrazolate-supported Fe3(μ3-O) core: Structural, spectroscopic, electrochemical, and magnetic study. Inorganic chemistry. 2007 Dec 24;46(26):10981-10989. doi: 10.1021/ic0701460
Piñero, Dalice ; Baran, Peter ; Boca, Roman et al. / A pyrazolate-supported Fe3(μ3-O) core : Structural, spectroscopic, electrochemical, and magnetic study. In: Inorganic chemistry. 2007 ; Vol. 46, No. 26. pp. 10981-10989.
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AU - Piñero, Dalice

AU - Baran, Peter

AU - Boca, Roman

AU - Herchel, Radovan

AU - Klein, Michael

AU - Raptis, Raphael G.

AU - Renz, Franz

AU - Sanakis, Yiannis

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AB - A comparison is made between the structural, spectroscopic, electrochemical, and magnetic properties of pyrazolate versus carboxylate complexes [Fe3(μ3(μ3O)(μ-LL) 6Cl3]2- containing the Fe3(μ 3-O)-motif. While the Fe3(μ3-O)-cores are structurally indistinguishable in the two types of complexes, their magnetic properties deviate from the expected values as a result of a through-pyrazole contribution to the overall antiferromagnetic exchange with J1/hc = -80.1 cm-1 and J2/hc = -72.4 cm-1, or J 1/hc = 70.6 cm-1 and J2/hc = -80.8 cm -1, (Hex = -J1(S1S2 + S2S3) - J2S1S3). The magnetic properties of the pyrazolate complexes are further tuned by an antisymmetric exchange interaction term.

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