Crystal structure of oxonium <Emphasis Type="Italic">trans</Emphasis>(O)-<Emphasis Type="Italic">cis</Emphasis>-(C)-dicyanobis(2-picolinato)cobaltate(III) hydrate: Two types of proton site |
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| Authors: | M Zabel A L Poznyak V I Pawlowski |
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| Institution: | (1) Institute of Inorganic Chemistry, University of Regensburg, Germany;(2) Institute of Molecular and Atomic Physics, National Academy of Sciences, Minsk, Belarus |
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| Abstract: | The trans(O)-cis(C)-bis(pyridine-2-carboxylato)dicyanocobaltate(III) ions, Co(Pic)2(CN)2]?, crystallize from acid medium with three water molecules per two crystallographically nonequivalent complexes whose charge is compensated by protons. One of the water molecules forms an oxonium ion (H3O+) with a proton. The other two water molecules bound to each other through a short hydrogen bond O-H…O (2.403(2) Å) and thus forming (H5O2)+ cations is another proton site. The (H3O)(H5O2)Co(Pic)2(CN)2]2 crystals are monoclinic: a = 10.7027(7) Å, b = 25.786(1) Å, c = 11.4865(8) Å, β = 91.411(9)°, Z = 4, space group P21/n. |
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| Keywords: | crystal structure oxonium ions dicyanobis(2-picolinato)cobaltate(III) ion |
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