| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
 104 0 |
 SM ISO690:2012STAVILA, Vitalie, BULIMESTRU, Ion, GULYA, Aurelian, COLSON, Adam C., WHITMIRE, Kenton. Hexaaqua-cobalt(II) andhexa-aqua-nickel(II)bis(μ-pyridine-2,6- dicarboxylato)bis-[(pyridine-2,6-dicarboxyl-ato)bismuthate(III)] dihydrate. In: Acta Crystallographica Section C: Crystal Structure Communications, 2011, vol. 67, pp. 65-68. ISSN 0108-2701. DOI: https://doi.org/10.1107/S0108270110053497 |
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 Acta Crystallographica Section C: Crystal Structure Communications |
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| Volumul 67 / 2011 / ISSN 0108-2701 /ISSNe 1600-5759 | ||||||
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| DOI:https://doi.org/10.1107/S0108270110053497 | ||||||
| Pag. 65-68 | ||||||
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| Rezumat | ||||||
The title complexes, hexa-aqua-cobalt(II) bis(μ-pyridine-2,6- dicarboxylato)bis[(pyridine-2,6-dicarboxyl-ato)bismuthate(III)] dihydrate, [Co(H2O)6][Bi2(C7H 4NO4)4]·2H2O, (I), and hexa-aqua-nickel(II) bis(mu;-pyridine-2,6-dicarboxyl-ato)bis[(pyridine-2,6- dicarboxyl-ato)bismuthate(III)] dihydrate, [Ni(H2O) 6][Bi2(C7H4NO4) 4]·2H2O, (II), are isomorphous and crystallize in the triclinic space group P1̄ . The transition metal ions are located on the inversion centre and adopt slightly distorted MO6 (M = Co or Ni) octa-hedral geometries. Two [Bi(pydc)2]- units (pydc is pyridine-2,6-dicarboxyl-ate) are linked via bridging carboxyl-ate groups into centrosymmetric [Bi2(pydc)4]2- dianions. The crystal packing reveals that the [M(H2O)6]2+ cations, [Bi2(pydc)4]2- anions and solvent water mol-ecules form multiple hydrogen bonds to generate a supra-molecular three-dimensional network. The formation of secondary Bi⋯O bonds between adjacent [Bi2(pydc)4]2- dimers provides an additional supra-molecular synthon that directs and facilitates the crystal packing of both (I) and (II). |
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| Cuvinte-cheie cobalt, Cobalt compounds, Dimers, Hydrogen bonds, Metal ions, Nickel compounds, Pyridine |
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