Acta Cryst. (2013). C69, 394-399 [ doi:10.1107/S0108270113006987 ]
Abstract: Reactions of 2-(hydroxymethyl)pyridine (Hhmp) with PbCl2 and Pb(NO3)2 at room temperature led to the formation of two novel compounds, namely tetrakis[3-(pyridin-2-yl)methanolato]-tetrahedro-tetrakis[chloridolead(II)], [Pb4(C6H6NO)4Cl4], (I), and poly[(2-nitrato)[2-(pyridin-2-yl)methanolato]lead(II)], [Pb(C6H6NO)(NO3)]n, (II). Compound (I) exhibits a tetranuclear Pb4O4 cubane structure, which is connected through - stacking interactions between the pyridine groups of the (pyridin-2-yl)methanolate (hmp-) ligands and through C-HCl interactions to form an interesting threefold diamondoid network. Compound (II) possesses two-dimensional (4,4)-sql topology based on a Pb2O2 unit, which is further extended into a three-dimensional supramolecular network through - stacking interactions between adjacent pyridine rings and through C-HO interactions between the pyridine C atoms of the hmp- ligands and the nitrate anions.
Formula: [Pb4(C6H6NO)4Cl4] and [Pb(C6H6NO)(NO3)]
Structure factor file (CIF format) (68.1 kbytes)
Structure factor file (CIF format) (76.4 kbytes)
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