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EPR on bis(1,2-dithiosquarato)cuprate(II) in the bis(1,2-dithiosquarato)nickelate(II) host lattice — structure and spectroscopy‡

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Abstract

EPR spectroscopy is a well suited analytical tool to monitor the electronic situation around paramagnetic metal centres as copper(II) and therefore the structural influences on the paramagnetic ion. 1,2-Dithiosquaratometalates are available by direct synthesis from metal salts with dipotassium-1,2-dithiosquarate and the appropriate counter cations. Synthesis and characterisation of bis(benzyltributylammonium)1,2-dithiosquaratonickelate(II), (BzlBu3N)2[Ni(dtsq)2], and bis(benzyltributylammonium)1,2-dithiosquaratocuprate(II), (BzlBu3N)2[Cu(dtsq)2], with benzyltributylammonium as the counter ion is reported and the X-ray structures of two complexes, (BzlBu3N)2[Ni(dtsq)2] and (BzlBu3N)2[Cu(dtsq)2], are presented. Both complexes, crystallising in the monoclinic space group P21/c, are isostructural with only small differences in the coordination sphere due to the different metal ions. The diamagnetic nickel complex is therefore well suited as a host lattice for the paramagnetic Cu(II) complex to measure EPR for additional structural information.

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Authors and Affiliations

  1. Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476, Potsdam, Germany

    Peter Strauch, Alexander Kossmann, Alexandra Kelling & Uwe Schilde

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  1. Peter Strauch
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  2. Alexander Kossmann
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  3. Alexandra Kelling
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  4. Uwe Schilde
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Correspondence to Peter Strauch.

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Strauch, P., Kossmann, A., Kelling, A. et al. EPR on bis(1,2-dithiosquarato)cuprate(II) in the bis(1,2-dithiosquarato)nickelate(II) host lattice — structure and spectroscopy‡. Chem. Pap. 70, 61–68 (2016). https://doi.org/10.1515/chempap-2015-0154

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