Crystal Structure of Nickel- and Cobalt-Diazidotetrapyridinemetal(II)-2(Pyridine) Clathrates |
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| Authors: | DV Soldatov J Lipkowski |
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| Institution: | (1) Institute of Inorganic Chemistry, Russian Academy of Sciences, Siberian Branch, Lavrentyeva 3, 630090 Novosibirsk, Russia;(2) Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44, 01 224 Warszawa, Poland |
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| Abstract: | MPy4(N3)2] 2Py (M = Ni, Co) are clathrates where two of six pyridine species are included in the crystal structure of the host complex without chemical bonding. The clathrates are isostructural, orthorhombic, space group Pnna (52), Z = 4. For the Ni compound a = 14.958(5), b = 11.909(5), c = 17.517(7) Ú, V = 3120(2) Ú3, µ = 12.25 cm-1, final R = 0.057.The Cocompound is of very similar structure (a = 14.980(3), b =11.980(2), c = 17.350(5) Ú, V = 3114(1) Ú3, µ = 46.50 cm-1. The metal cation in the host molecule is surrounded by six donor nitrogens of two terminal azido-groups in trans-positions and four pyridine ligands. The complex molecule lies on a twofold axis parallel to a. |
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| Keywords: | Crystal structure Werner clathrate azide pyridine Ni(II) Co(II) |
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