Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 82: Issue 1
Synergistic extraction of manganese(II) with thenoyltrifluoroacetone and neutral unidentate and bidentate ligands
Authors:
S. Nakamura Tohoku University Department of Chemistry, Faculty of Science Sendai Japan

Search for other papers by S. Nakamura in
Current site
Google Scholar
PubMed Close
,
H. Imura Tohoku University Department of Chemistry, Faculty of Science Sendai Japan

Search for other papers by H. Imura in
Current site
Google Scholar
PubMed Close
, and
N. Suzuki Tohoku University Department of Chemistry, Faculty of Science Sendai Japan

Search for other papers by N. Suzuki in
Current site
Google Scholar
PubMed Close
Pages:
33–44
Online Publication Date:
23 Oct 2005
Publication Date:
17 Apr 1984
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02227325
Restricted access

Abstract  

Synergistic effect of neutral bidentate ligands, L, such as 1,10-phenanthroline(phen), 2,9-dimethyl-1,10-phenanthroline(dmp), and 2,2-bipyridine(bpy), and of neutral unidentate ligands TBP and TOPO have been studied in the extraction of Mn(II) labeled with54Mn, using 2-thenoyl-trifluoroacetone(HTTA) in various organic solvents. The following factors play an important role in the synergistic extraction involving bidentate ligands; two-phase partition of bidentate ligands, their protonation and complex formation with Mn(II) in the aqueous phase. The mixed ligand complex, Mn(TTA)2L, is formed in all bidentate ligand systems. The adduct formation constant (S,1) decreases in the following order; phen (lg S,1=12.64) > dmp(11.32)> · bpy(8.54) in the cyclohexane system. This order is ascribed to the bacisity and the steric effect of the bidentate ligands. Organic solvents influence both the adduct formation and the partition of the ligands, and S,1 decreases in the order cyclohexane>carbon tetrachloride>chlorobenzen = benzene>chloroform.

  • Collapse
  • Expand
Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Nov 2024 7 0 0
Dec 2024 11 0 0
Jan 2025 61 0 0
Feb 2025 60 0 0
Mar 2025 41 0 0
Apr 2025 6 0 0
May 2025 0 0 0