SciELO - Scientific Electronic Library Online

vol.113 número2A comparative assessment of Ti-47.5 at.%Al cathodically modified by precious metal additionEffect of dual phase microstructure on the toughness of a Cr-Mo low-alloy plate steel índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados



Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Em processo de indexaçãoSimilares em Google


Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717
versão impressa ISSN 0038-223X


STEYN, M.; VISSER, H.G.  e  ROODT, A.. Evaluation of oxine-type ligand coordination to zirconium (IV). J. S. Afr. Inst. Min. Metall. [online]. 2013, vol.113, n.2, pp.105-108. ISSN 2411-9717.

[Zr(C9H6NO)4]-(HCON(CH3)2)-(H2O), where (C9H6NO) = 8-hydroxy quinoline (oxH), was synthesized and characterized. This tetrakis-coordinated zirconium complex crystallized in the triclinic crystal system (PT, Z=2) along with water and N,N'-dimethylformamide (DMF) solvate in the asymmetric unit. The metal atom is surrounded by four N,O-donating bidentate ox-ligands that are arranged around the metal centre to give a square antiprismatic coordination polyhedron with a small distortion towards a dodeca-hedral geometry. Crystal packing is stabilized by intermolecular interactions of adjacent oxine ring systems in neighbouring molecules, as well as hydrogen bonding of the aqua and DMF solvate molecules, linking the molecular entities into a supramol-ecular three-dimensional network.

Palavras-chave : zirconium; tetrakis coordination; quinolinato.

        · texto em Inglês     · Inglês ( pdf )


Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons