Overview of the Actinide and Lanthanide (the f ) Elements

  title={Overview of the Actinide and Lanthanide (the f ) Elements},
  author={Glenn Theodore Seaborg},
The chemical properties, ion exchange behavior, oxidation states, ion types and stability, ionic radii, electronic structure, and crystal structure of the 14 actinides (plus actinium) and 14 lanthanides (plus lanthanum) are discussed on comparative basis. The analogous positions of these two groups of elements in the periodic table are discussed. Also included are tables identifying the discoverers of these 30 elements and a discussion of the practical application of many of them. 

Figures and Tables from this paper

Molecular Structure of Solvates and Coordination Complexes in Solution as Determined with EXAFS and XANES
x-Ray absorption spectroscopy provides accurate information about the local structure around the majority of the elements in the periodic table, in either solid or liquid states, crystalline or
Gas-phase chemistry of actinide ions: probing the distinctive character of the 5f elements
Abstract Recent years have witnessed an increased level of activity in the study of gas-phase chemistry of bare and oxo-ligated actinide ions. The intent of this report is to summarize some key
Structure of early actinides(V) in acidic solutions
Abstract Protactinium occupies a key position in the actinide series between thorium and uranium. In aqueous acidic solution, it is stable at oxidation state (V), occurring either as an oxocation or
Solving the hydration structure of the heaviest actinide aqua ion known: the californium(III) case.
Coupling new highly refined EXAFS data obtained in an actinide-dedicated beamline in the European Synchrotron Radiation Facility (ESRF, Grenoble), with the first Monte Carlo simulations of Cf in water gives the study a more fundamental than applied character.
20 Chemistry of Transactinides
In this chapter, the chemical properties of the man-made transactinide elements rutherfordium, Rf (element 104), dubnium, Db (element 105), seaborgium, Sg (element 106), bohrium, Bh (element 107),
Series of Tetravalent Actinide Amidinates: Structure Determination and Bonding Analysis.
Two series of isostructural tetravalent actinide amidinates bearing the chiral (S,S)-N,N'-bis(1-phenylethyl)benzamidinate ((S)-PEBA) ligand have been synthesized and thoroughly characterized in solid and in solution.
Complexation of Ln3+ lanthanide cations with phosphoryl-containing OPR3 ligands: a quantum-mechanics study
Abstract We report a series of ab initio quantum-mechanical calculations on M 3+ (M = La, Eu and Yb) and MCl 3 model complexes of OPR 3 ligands (R = H, Me, Et and Ph) to assess the role of R
Complexation of Actinide(III) and Lanthanide(III) with H4TPAEN for a Separation of Americium from Curium and Lanthanides.
The complexation of selected trivalent Ln(III) and actinide (An(III)) cations with TPAEN was investigated in solution to get insight into the selectivity of this ligand.
Selective separation of actinyl(V,VI) cations from aqueous solutions by Chelex-100
Abstract Experimental studies on the selectivity of Chelex-100 resin for the separation of actinide cations at different oxidation states (III, IV, V and VI) from aqueous solution have shown that
Unprecedented Inversion of Selectivity and Extraordinary Difference in the Complexation of Trivalent f Elements by Diastereomers of a Methylated Diglycolamide.
An extraordinary (up to two orders of magnitude) change in the extraction efficiency of f elements with two diastereomers of dimethyl tetraoctyl diglycolamide (Me2 -TODGA), which only differ in the orientation of a single methyl group.


Elements beyond uranium
This book is the 12th volume in a series on transuranium elements. Varied techniques for production of these elements, the methods used in the identification, and the exquisitely refined
Systematics and Properties of the Lanthanides, NATO ASI Series, Series C
  • Mathematical and Physical Sci- ences No. 109,
  • 1982
The Lanthanides
  • Comprehensive Inorganic Chemistry,
  • 1973
Lanthanides and Actinides, Inorganic Chemis- try
  • Series I,
  • 1972