Complexation of Np V Ions with 1,10‐Phenanthroline‐2,9‐dicarboxylic Acid: Spectrophotometric and Microcalorimetric Studies
1
Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900, China
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Publication type: Journal Article
Publication date: 2014-10-06
scimago Q2
wos Q3
SJR: 0.459
CiteScore: 3.9
Impact factor: 2.0
ISSN: 14341948, 10990682
Inorganic Chemistry
Abstract
The complexation of NpV ions with a tetradentate ligand with oxygen and nitrogen donors, 1,10-phenanthroline-2,9-dicarboxylic acid (denoted as H2L), was studied in aqueous solutions by spectrophotometric and calorimetric methods. NpV ions form a very strong 1:1 complex, NpO2L–, with the stability constant log β = 11.73 ± 0.02 in 0.1 M NaClO4 at 25 °C. It is a much stronger complex than those of NpV ions with related ligands such as picolinic acid or dipicolinic acid, as the higher denticity of 1,10-phenanthroline-2,9-dicarboxylic acid results in a larger entropic effect on the complexation. It is expected that the amide derivatives of 1,10-phenanthroline-2,9-dicarboxylic acid would be excellent extractants in the separation of NpV ions, which are problematic in actinide separation processes owing to their very low extractability by many extractants.
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14
Total citations:
14
Citations from 2024:
1
(7%)
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Yang Y. et al. Complexation of Np V Ions with 1,10‐Phenanthroline‐2,9‐dicarboxylic Acid: Spectrophotometric and Microcalorimetric Studies // European Journal of Inorganic Chemistry. 2014. Vol. 2014. No. 32. pp. 5561-5566.
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Yang Y., Zhang Z., Luo S., Rao L. Complexation of Np V Ions with 1,10‐Phenanthroline‐2,9‐dicarboxylic Acid: Spectrophotometric and Microcalorimetric Studies // European Journal of Inorganic Chemistry. 2014. Vol. 2014. No. 32. pp. 5561-5566.
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RIS
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TY - JOUR
DO - 10.1002/ejic.201402520
UR - https://doi.org/10.1002/ejic.201402520
TI - Complexation of Np V Ions with 1,10‐Phenanthroline‐2,9‐dicarboxylic Acid: Spectrophotometric and Microcalorimetric Studies
T2 - European Journal of Inorganic Chemistry
AU - Yang, Yanqiu
AU - Zhang, Zhicheng
AU - Luo, Shunzhong
AU - Rao, Linfeng
PY - 2014
DA - 2014/10/06
PB - Wiley
SP - 5561-5566
IS - 32
VL - 2014
SN - 1434-1948
SN - 1099-0682
ER -
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BibTex (up to 50 authors)
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@article{2014_Yang,
author = {Yanqiu Yang and Zhicheng Zhang and Shunzhong Luo and Linfeng Rao},
title = {Complexation of Np V Ions with 1,10‐Phenanthroline‐2,9‐dicarboxylic Acid: Spectrophotometric and Microcalorimetric Studies},
journal = {European Journal of Inorganic Chemistry},
year = {2014},
volume = {2014},
publisher = {Wiley},
month = {oct},
url = {https://doi.org/10.1002/ejic.201402520},
number = {32},
pages = {5561--5566},
doi = {10.1002/ejic.201402520}
}
Cite this
MLA
Copy
Yang, Yanqiu, et al. “Complexation of Np V Ions with 1,10‐Phenanthroline‐2,9‐dicarboxylic Acid: Spectrophotometric and Microcalorimetric Studies.” European Journal of Inorganic Chemistry, vol. 2014, no. 32, Oct. 2014, pp. 5561-5566. https://doi.org/10.1002/ejic.201402520.