Results 11 to 20 of about 2,642 (182)

A Systemic Insight into Exohedral Actinides and Endohedral Borospherenes: An&Bm and An@Bn (An=U, Np, Pu; m = 28, 32, 34, 36, 38, 40; n = 36, 38, 40)

open access: yesMolecules, 2022
A series of exohedral actinide borospherenes, An&Bm, and endohedral borospherenes, An@Bn (An=U, Np, Pu; m = 28, 32, 34, 36, 38, 40; n = 36, 38, 40), have been characterized by density functional theory calculations.
Peng Li   +9 more
doaj   +1 more source

Relativistic effects on the chemistry of heavier elements: why not given proper importance in chemistry education at the undergraduate and postgraduate level?

open access: yesChemistry Teacher International, 2023
Relativistic effects are important to understand the chemistry of heavier elements across the periodic table (PT). Three important relativistic effects are: contraction of s- and p-orbitals (direct relativistic effect), expansion of d- and f-orbitals ...
Das Ankita   +3 more
doaj   +1 more source

Opportunities and challenges of applying advanced X-ray spectroscopy to actinide and lanthanide N-donor ligand systems

open access: yesJournal of Synchrotron Radiation, 2022
N-donor ligands such as n-Pr-BTP [2,6-bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine] preferentially bind trivalent actinides (An3+) over trivalent lanthanides (Ln3+) in liquid–liquid separation. However, the chemical and physical processes responsible for
Tim Pruessmann   +7 more
doaj   +1 more source

Bonding with actinides [PDF]

open access: yesNature Chemistry, 2017
Suzanne Bart from Purdue University talks to Nature Chemistry about her investigations into the chemistry of actinides, and why she finds them both challenging and rewarding.
openaire   +2 more sources

Spectroscopic evaluation of UVI–cement mineral interactions: ettringite and hydrotalcite

open access: yesJournal of Synchrotron Radiation, 2022
Portland cement based grouts used for radioactive waste immobilization contain high replacement levels of supplementary cementitious materials, including blast-furnace slag and fly ash.
Antonia S. Yorkshire   +8 more
doaj   +1 more source

Competing Metal–Ligand Interactions in Tris(cyclopentadienyl)-cyclohexylisonitrile Complexes of Trivalent Actinides and Lanthanides

open access: yesMolecules, 2022
The structure and bonding properties of 16 complexes formed by trivalent f elements (M=U, Np, Pu and lanthanides except for Pm and Pr) with cyclopentadienyl (Cp) and cyclohexylisonitrile (C≡NCy) ligands, (Cp)3M(C≡NCy), were studied by a joint ...
Attila Kovács   +2 more
doaj   +1 more source

Sensitivity analysis of minor actinides transmutation to physical and technological parameters

open access: yesEPJ Nuclear Sciences & Technologies, 2015
Minor actinides transmutation is one of the three main axis defined by the 2006 French law for management of nuclear waste, along with long-term storage and use of a deep geological repository. Transmutation options for critical systems can be divided in
Kooyman Timothée, Buiron Laurent
doaj   +1 more source

Uranyl Coordination Mediates Structure Evolution of Supramolecular Assemblies of Carbazole Tricarboxylic Acid

open access: yesHe huaxue yu fangshe huaxue, 2022
As a class of typical metal-organic framework materials(MOFs), actinide-based MOFs feature their unique actinide-ligand bonds. However, how these coordination interactions participate in and affect the lattice assembly process of organic ligands remains ...
WANG Shuai   +5 more
doaj   +1 more source

Alpha-cluster preformation probability in even-even actinide nuclei

open access: yesResults in Physics, 2019
The preformation probability of alpha cluster in the even-even actinide nuclei was determined using the cluster-formation model. The actinides chosen were with high and low intensity of alpha-decay mode. The results showed well production of preformation
Norah A.M. Alsaif, Saad M. Saleh Ahmed
doaj   +1 more source

DEVELOPMENT OF MATRIX MATERIAL BASED ON ALUMINATE PEROVSKITE FOR IMMOBILIZATION OF ACTINIDES BY SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2021
The relevance of the research is determined by the need to developing the method for obtaining mineral-like matrix materials intended for immobilization of the most hazardous radioactive waste of the nuclear industry. The use of the self-propagating high-
Oleg Yu. Dolmatov   +2 more
doaj   +1 more source

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