SciELO - Scientific Electronic Library Online

 
vol.64Synthesis of 9H-indeno [1, 2-b] pyrazine and 11H-indeno [1, 2-b] quinoxaline derivatives in one-step reaction from 2-bromo-4-chloro-1-indanoneMicrowave irradiation versus conventional heating in the synthesis of N-methyl-2-pyrrolidone catalyzed by highly active copper powder índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • En proceso de indezaciónSimilares en Google

Compartir


South African Journal of Chemistry

versión On-line ISSN 1996-840X

Resumen

BILLING, Caren; LEVENDIS, Demetrius C.  y  VIEIRA, Vanessa L.. The crystal structures of two novel cadmium-picolinic acid complexes in relation to the solution species. S.Afr.j.chem. (Online) [online]. 2011, vol.64, pp. 38-41. ISSN 1996-840X.

The crystal structures of two novel cadmium-picolinic acid complexes grown in aqueous solutions at selected pH values are reported. The structures are compared to expected solution species under the same conditions. The crystal structure of complex 1 exhibits a seven coordinate structure which contains a protonated picolinic acid ligand thatbonds bidentately to the cadmium ion via both carboxylate oxygens. Two nitrates coordinate to the metal centre within the same plane, one monodentately and the other bidentately, and two water molecules are found in the axial positions. The structure of complex 2 shows cadmium bonded to three of N,O-bidentate picolinic acid ligands to produce a distorted octahedron.

Palabras clave : Cadmium; picolinic acid; solution species; crystal structures; controlled pH.

        · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License