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@ARTICLE{Alahmari:860012,
      author       = {Alahmari, Fatimah and Davaasuren, Bambar and Emwas,
                      Abdul-Hamid and M. F. J. Costa, Pedro and Rothenberger,
                      Alexander},
      title        = {{T}ris(ethylenediamine)nickel({II}) thio-hydroxogermanate
                      monohydrate: {S}ynthesis, crystal structure, 1{H} {NMR},
                      {EPR}, optical and magnetic properties},
      journal      = {Inorganica chimica acta},
      volume       = {488},
      issn         = {0020-1693},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-00809},
      pages        = {145 - 151},
      year         = {2019},
      abstract     = {A new tris(ethylenediamine)nickel(II) complex
                      [Ni(en)3]GeS2(OH)2·H2O containing a zero-dimensional
                      thiohydroxogermanate [GeS2(OH)2]2− anion was synthesized
                      using a solvothermal reaction. The compound crystallizes in
                      monoclinic space group P21/n with cell parameters
                      a = 8.676(3) Å, b = 13.574(4) Å, c = 13.976(4)
                      Å and β = 92.67(2)°. The ethylenediamine (en) ligands
                      are bidentate to the Ni2+ through the N atoms of the amine
                      group resulting in a distorted octahedral environment around
                      the transition metal. The solid-state 1H NMR shows four
                      broad singlets attributed to the –CH2 and –NH2 protons
                      of the (en) in addition to H2O and –OH protons. The EPR
                      results indicate that the octahedrally coordinated Ni2+
                      cations are paramagnetic with two unpaired electrons. In
                      agreement with the EPR results, the ZFC/FC magnetization
                      measurements show a paramagnetic response. The title
                      compound is a wide bandgap semiconductor (3.9 eV) and
                      exhibits photoluminescence emission at 488 nm upon
                      excitation (325 nm).},
      cin          = {IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000458696800017},
      doi          = {10.1016/j.ica.2019.01.019},
      url          = {https://juser.fz-juelich.de/record/860012},
}