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Issue 24, 2017
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Synthesis and magnetochemistry of heterometallic triangular FeIII2LnIII (Ln = La, Gd, Tb, Dy, and Ho) and FeIII2YIII complexes

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Abstract

A series of Fe2Ln (Ln = La, Gd, Tb, Dy and Ho) and Fe2Y complexes have been synthesized via metal substitution and characterized by single crystal X-ray diffraction. All the molecules are isostructural and have a Fe2LnO triangular core with the oxygen atom existing as an μ3-oxo2− anion. DC and AC magnetic susceptibility studies were performed on all the molecules. For Fe2Ln (Ln = Gd, La) and Fe2Y, the data were fitted to Van Vleck equations and the magnetic coupling constants were obtained. In all cases, the two Fe(III) spins were found to be antiparallel to each other in the ground state leaving the heterometal to remain essentially uncoupled.

Graphical abstract: Synthesis and magnetochemistry of heterometallic triangular FeIII2LnIII (Ln = La, Gd, Tb, Dy, and Ho) and FeIII2YIII complexes

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Publication details

The article was received on 16 Mar 2017, accepted on 03 Jun 2017 and first published on 05 Jun 2017


Article type: Paper
DOI: 10.1039/C7DT00949F
Citation: Dalton Trans., 2017,46, 7897-7903
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    Synthesis and magnetochemistry of heterometallic triangular FeIII2LnIII (Ln = La, Gd, Tb, Dy, and Ho) and FeIII2YIII complexes

    N. Singh, S. Das Gupta, R. J. Butcher and G. Christou, Dalton Trans., 2017, 46, 7897
    DOI: 10.1039/C7DT00949F

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