Characterization of some arylhydrazone-5-pyrazolones and their chelates with divalent Fe, Co, Ni, Cu, and Zn ions
Egyptian Journal of Chemistry. 1997; 40 (6): 463-74
in English
| IMEMR
| ID: emr-44573
ABSTRACT
The pK values of two substituted arylhydrazo-5-pyrazolones are assigned to the dissociation of a proton from the corresponding functional groups. The stability constants of their chelates with some divalent metal ions, viz. Fe [II], Co [II], Ni [II], Cu [II] and Zn [II] have also been determined. The structure of the compounds prepared has been elucidated by IR and NMR spectra which indicate the quinone-hydrazone form rather than the hydroxy-azo or Zwitter ion structures. Solid chelates were isolated and characterized
Search on Google
Index:
IMEMR (Eastern Mediterranean)
Main subject:
Zinc
/
Cobalt
/
Copper
/
Hydrazones
/
Ions
/
Iron
/
Nickel
Language:
English
Journal:
Egypt. J. Chem.
Year:
1997
Similar
MEDLINE
...
LILACS
LIS