Chemical properties of positive singly charged astatine ion in aqueous solution
@article{Milanov1984ChemicalPO,
title={Chemical properties of positive singly charged astatine ion in aqueous solution},
author={Martin Milanov and V. Doberenz and V. A. Khalkin and Andrey Marinov},
journal={Journal of Radioanalytical and Nuclear Chemistry},
year={1984},
volume={83},
pages={291-299}
}AbstractThe mobility of oxidized astatine in solutions H(Na)ClO4 (μ=0.4 M) − 1·10−4M K2Cr2O7 has been measured at 25°C in the interval 0.63≤pH≤1.68. Under these conditions astatine migrates to the cathode only. The speed of the migration depends upon the concentration of hydrogen ions in solution: pH 1.68 Uc = 1.17 · 10-4 cm2 V-1 s-1 pH 0.63 Uc = 2.67 · 10-4 cm2 V-1 s-1
The effect agrees with the opinion that the singly charged cation of astatine formed in acidic solutions is a strong…
14 Citations
Speciation of astatine reacted with oxidizing and reducing reagents by thin layer chromatography: formation of volatile astatine
- ChemistryJournal of Radioanalytical and Nuclear Chemistry
- 2019
Radio-chromatography was conducted by using the astatine radionuclides 209,210,211At produced in the 7Li induced reaction of 209Bi. The speciation of dissolved astatine chemical species of astatide…
The EDTA complexes of astatine
- Biology
- 1988
Using the electromigration method the monopositive astatine ion has been shown to form EDTA [H4L] complexes in 0.1M NaClO4 solution at pH=3–10. The ion mobility of the AtL3− complex is 5.60/23/x10−4…
Synthesis and first characterization of cationic At/I/-compounds with selenium-containing neutral ligands
- Chemistry
- 1987
The formation of cationic astatine /I/-coordination compounds with selenium-containing neutral ligands is described. The detection of compound formation and first physico-chemical data on the…
Thin layer chromatography for astatine and iodine in solutions prepared by dry distillation
- Chemistry, Environmental ScienceJournal of Radioanalytical and Nuclear Chemistry
- 2018
The astatine radionuclides 208,209,210,211At and the iodine radionuclides 120,121,123I were simultaneously produced by 7Li beam irradiation of a stack of lead and tin targets. The astatine and the…
Origin of Asymmetric Solvation Effects for Ions in Water and Organic Solvents Investigated Using Molecular Dynamics Simulations: The Swain Acity-Basity Scale Revisited.
- Chemistry, PhysicsThe journal of physical chemistry. B
- 2016
The asymmetric solvation of ions is investigated using molecular dynamics simulations, and the Swain scale is reformulated into a new scale involving an asymmetry parameter Σ, positive for acitic solvents and negative for basitic ones, and a polarity parameter Π, which characterizes asymmetry in an absolute sense.
Advances in the Chemistry of Astatine and Implications for the Development of Radiopharmaceuticals.
- ChemistryAccounts of chemical research
- 2021
A concise summary of recent advances in the determination of the physicochemical properties of astatine, putting in perspective the duality of this element which exhibits the characteristics both of a halogen and of a metal.
Handling of Astatine
- Physics
- 1985
Astatine, the fifth halogen and homologue of iodine, is one of the best studied radioelements. Since its discovery in 1940 by Corson, MacKenzie and Segre [1 to 5] after more than 16 years of…
Chemical Behavior and Compounds of Astatine
- Chemistry
- 1985
In spite of its limited availability and the many difficulties connected with the experimental handling of astatine there is a continuous interest in the chemistry of the element since its discovery…
General Properties of Astatine
- Geology
- 1985
Only a very limited amount of direct evidence is available concerning the properties of astatine because it occurs naturally in trace amounts. In view of this, most of the data for astatine have been…
References
SHOWING 1-3 OF 3 REFERENCES
Study of the H+ and OH− Hydrated Ions by the CNDO/2 Method
- Chemistry
- 1970
The ions obtained by hydration of H+ and OH−, e.g., H3O+, H5O2, H7O3, H9O4+, H3O2−, H5O3−, and H7O4− have been studied theoretically using the CNDO/2 method. The results indicate chain structures are…