- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Determination of the Stability Constants for some First Transition Elements Complexes with 3-(2- hydroxyl phenyl ) -2 – Pyrazoline In Aqueous Solution | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 31, 6 B, 2013, Pages 780-791 PDF (885.36 K) | ||
| DOI: 10.30684/etj.31.6B.9 | ||
| Authors | ||
| Ahlam S.Maroof; Wesall Mtaab; Rasha W. Mohy | ||
| Abstract | ||
| Transition metal complexes Cr(III) , Fe(III) , Co(II) , Ni(II) & Cu(II) with 3-(2- hydroxy phenyl ) -2– pyrazoline have been prepared and characterized in aqueous solution. The complexes were characterized by infrared (IR), UV-visible & molar conductivity measurements. The bidentate ligand was bonded from one of the nitrogen atoms of pyrazolien & oxygen atom phenoxide group. The molecular structure for the complexes was proposed. The stability constants of these complexes were found by measuring electric molar conductivity in different concentrations was also found. The determined values of the prepared complexes increases according to the following sequence: Co+2 > Cu+2 > Ni+2 > Fe+3 > Cr+3 This result agrees with the Irving Williamson series:- Mn+2 < Fe+2 < Co+2 < Ni+2 < Cu+2 > Zn+2 | ||
| Keywords | ||
| Stability Constants; First Transition Elements Complexes; hydroxyl Phenyl; Pyrazoline | ||
|
Statistics Article View: 319 PDF Download: 245 |
||