Poly[di-μ2-acetato-κ4O:O′-μ3-thiourea-κ3S:S:S-lead(II)]: a redetermination
| Autor: | Hafid Zouihri, Mbark Ait Mouha, Bouchra Ba Mohamed, Khalid Yamni, Najib Tijani |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | IUCrData, Vol 1, Iss 12, p x161892 (2016) |
| Druh dokumentu: | article |
| ISSN: | 2414-3146 24143146 |
| DOI: | 10.1107/S2414314616018927 |
| Popis: | The structure of the title polymeric lead(II) thiourea complex, [Pb(CH3O)2{SC(NH2)2}]n, has been redetermined at significantly higher precision using diffractometer data at 100 K. The previous determination used data obtained from multiple-film integrated Weissenberg photographs [Nardelli et al. (1960). Acta Cryst. 13, 898–904]. The main difference between the two models is in the precision of the bond lengths, angles and cell parameters. In the crystal, the eight-coordinate PbII atom is chelated by two carboxylate groups and bridged by three S atoms from thiourea ligands. The coordination sphere is completed by an O atom from a third carboxylate group, the second O atom of which binds to a neighbouring PbII atom, forming a polymeric chain that runs the a axis. Two of these chains are related by centres of symmetry. Intermolecular hydrogen bonds connect neighbouring chains to one another, generating a three-dimensional network. |
| Databáze: | Directory of Open Access Journals |
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