Studies on Some N-Acyl N-Phenylhydroxylamines as Metal Complexing Ligands. Part IX. Formation Constants of UO2+2 Complexes of Some N-Hydroxysuccinamic Acids
| Main Authors: | NRIPENDRA NATH GHOSH, SUSANTA KUKAR MUKHOPADHYAY |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1976
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6393422 |
Daftar Isi:
- Inorganic Chemistry Laboratory, University College of Science, Calcutta-700009. Manuscript received 16 August 1975, revised 30 October 1975, accepted 4 November 1975 The first-step formation constants of UO22+-complexes of some N-hydroxysuccinamic acids viz. N-phenyl N-hydroxysuccinamic acid (RpH2), N-o-tolyl N-hydroxysuccinamic acid (ReoH2) and N-m-tolyl N-hydroxysuccinarnic acid (RtmH2) have been determined spectrophotometrically. Stabilities are in the ligand order RtmH2 > RtoH2 > RpH2. The first-step hydrolysis constant k' of UO22+ ion has been determined spectrophotometrically and found to be pk' = 4.00 at a constant ionic strength (μ = 0.5) at 30° ±0.5° and the molar extinction coefficients of the species UO22+ and UO2 (OH)+ at λ= 385 am are found to be 2.0 and 13.0 respectively.