2 documentos corresponden a la consulta.
Palabras contadas: catena: 4
Baggio, R. - Garland, M.T. - Perec, M.
Acta Crystallogr Sect C Cryst Struct Commun 2003;59(1):m30-m32
2003
Temas: Carboxylic acids - Crystal structure - Crystallography - Hydrogen bonds - Molecular structure - Polymers - Zinc compounds - Polymeric phases - Organometallics - Catena
Descripción: A new polymeric phase of zinc(II) oxydiacetate, catena-poly[[[diaquazinc(II)]-μ-oxydiacetato] hydrate], {[Zn(C4H4-O5)(H2O)2] ·H2O}n, isomorphous with the Co homologue [Hatfield, Helms, Rohrs, Singh, Wasson & Weller (1987). Proc. Indian Acad. Sci. Chem. Sci. 98, 23-31], is reported. It presents a chain-like structure, generated by ZnO6 cores which are bridged by carboxylate groups in an anti-anti conformation along the unique crystallographic b axis. The chains are held together through hydrogen-bonding interactions with the three water molecules.
...ver más Tipo de documento: info:ar-repo/semantics/artículo
Zelcer, A. - Chaia, Z.D. - Cukiernik, F.D. - Castellano, E.E. - Piro, O.E.
Acta Crystallogr Sect C Cryst Struct Commun 2002;58(3):m144-m146
2002
Temas: Crystal structure - Liquid crystals - Negative ions - Ruthenium compounds - X ray diffraction analysis - Diruthenium tetradecanoate - Long chain carboxylate - Organometallics - Catena
Descripción: The title compound, catena-poly[[tetrakis(μ-decanoato- κ2O:O′)-diruthenium(II, III) (Ru - Ru)]- μ-octanesulfonato-κ2O:O′], [Ru2(C10H19O2)4 (C8H17O3S)], is an octanesulfonate derivative of the mixed-valence complex diruthenium tetradecanoate. The equatorial carboxylate ligands are bidentate, bridging two Ru atoms to form a dinuclear structure. Each of the two independent dinuclear metal complexes in the asymmetric unit is located at an inversion centre. The octanesulfonate anion bridges the two dinuclear units through axial coordination. The alkyl chains of the carboxylate and sulfonate ligands are arranged in a parallel manner. The global structure can be seen as infinite chains of polar moieties separated by a double layer of non-polar alkyl groups, without interdigitation of the alkyl chains.
...ver más Tipo de documento: info:ar-repo/semantics/artículo