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Tetranuclear manganese (III) salicylaldoxime ensemble

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Abstract

Crystal structure of {[Mn(salicylaldoximeH)(salicylaldoxime)]4} · 3CHCl3 1 formed by the interaction of MnCl2 · 4H2O and salicylaldoxime in a 1:1 ratio is described. The compound crystallizes in the orthorhombic space group Pbca (No 61) with the lattice parameters; a = 27.769 (3), b = 22.672 (2), c = 21.650 (2) Å, V = 13630 (2) Å3, Z = 8, R 1 = 0.0776, wR 2 = 0.2356, S = 1.164. The cluster with four Mn (III) centers formed by four terminal and four bridging salicylaldoxime ligands results in a central rotating wheel-like core with the Mn–Mn separation varying from 3.531 to 3.576 Å and with the diagonal distances being 4.156–4.165 Å. Four intramolecular H-bonds between a terminal oxime (NOH) group and the adjacent phenolate oxygen atom of another ligand stabilize the structure of the cluster. Spectral, magnetic, and cyclic voltammetry studies corroborate a stable Mn (III) tetramer.

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Acknowledgments

Financial support from Council of Scientific and Industrial Research (CSIR), New Delhi, is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Chemistry, University of Pune, Pune, 411007, India

    Avinash S. Kumbhar, Mahesh P. Mulay & Subhash B. Padhye

  2. Centre for Materials Characterization, National Chemical Laboratory, Pune, 411008, India

    Sudam S. Tavale & Vedavati G. Puranik

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  1. Avinash S. Kumbhar
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  2. Mahesh P. Mulay
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  3. Subhash B. Padhye
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  4. Sudam S. Tavale
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  5. Vedavati G. Puranik
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Correspondence to Avinash S. Kumbhar or Subhash B. Padhye.

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The article was accepted and intended for the Special issue but was left out due to a production error.

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Kumbhar, A.S., Mulay, M.P., Padhye, S.B. et al. Tetranuclear manganese (III) salicylaldoxime ensemble. Struct Chem 19, 735–740 (2008). https://doi.org/10.1007/s11224-008-9346-3

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  • DOI: https://doi.org/10.1007/s11224-008-9346-3

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