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Title: Evaluation of f -element borate chemistry

Authors:
;
Publication Date:
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1397621
Grant/Contract Number:
FG02-13ER16414; SC0010677
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Coordination Chemistry Reviews
Additional Journal Information:
Journal Volume: 323; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 21:43:10; Journal ID: ISSN 0010-8545
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Silver, Mark A., and Albrecht-Schmitt, Thomas E. Evaluation of f -element borate chemistry. Netherlands: N. p., 2016. Web. doi:10.1016/j.ccr.2016.02.015.
Silver, Mark A., & Albrecht-Schmitt, Thomas E. Evaluation of f -element borate chemistry. Netherlands. doi:10.1016/j.ccr.2016.02.015.
Silver, Mark A., and Albrecht-Schmitt, Thomas E. 2016. "Evaluation of f -element borate chemistry". Netherlands. doi:10.1016/j.ccr.2016.02.015.
@article{osti_1397621,
title = {Evaluation of f -element borate chemistry},
author = {Silver, Mark A. and Albrecht-Schmitt, Thomas E.},
abstractNote = {},
doi = {10.1016/j.ccr.2016.02.015},
journal = {Coordination Chemistry Reviews},
number = C,
volume = 323,
place = {Netherlands},
year = 2016,
month = 9
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.ccr.2016.02.015

Citation Metrics:
Cited by: 20works
Citation information provided by
Web of Science

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  • A new gadolinium fluoride borate Gd{sub 4}B{sub 4}O{sub 11}F{sub 2} was yielded in a Walker-type multianvil apparatus at 7.5 GPa and 1100 deg. C. Gd{sub 4}B{sub 4}O{sub 11}F{sub 2} crystallizes monoclinically in the space group C2/c with the lattice parameters a=1361.3(3) pm, b=464.2(2) pm, c=1374.1(3) pm, and beta=91.32(3){sup o} (Z=4). The crystal structure exhibits a structural motif not yet reported from borate chemistry: two BO{sub 4}-tetrahedra (square) and two BO{sub 3}-groups (DELTA) are connected via common corners, leading to the fundamental building block 2DELTA2square:DELTAsquaresquareDELTA. In the two crystallographically identical BO{sub 4}-tetrahedra, a distortion resulting in a very long B-O-bond ismore » found. - Graphical abstract: A new gadolinium fluoride borate Gd{sub 4}B{sub 4}O{sub 11}F{sub 2} could be synthesized via high-pressure/high-temperature synthesis (multianvil technique). The crystal structure exhibits a structural motif not yet reported from borate chemistry: two BO{sub 4}-tetrahedra (square) and two BO{sub 3}-groups (DELTA) are connected via common corners, leading to the fundamental building block 2DELTA2square:DELTAsquaresquareDELTA.« less
  • No abstract prepared.
  • The reaction of uranyl nitrate with a large excess of molten boric acid in the presence of potassium or rubidium nitrate results in the formation of three new potassium uranyl borates, K{sub 2}[(UO{sub 2}){sub 2}B{sub 12}O{sub 19}(OH){sub 4}]·0.3H{sub 2}O (KUBO-1), K[(UO{sub 2}){sub 2}B{sub 10}O{sub 15}(OH){sub 5}] (KUBO-2), and K[(UO{sub 2}){sub 2}B{sub 10}O{sub 16}(OH){sub 3}]·0.7H{sub 2}O (KUBO-3) and two new rubidium uranyl borates Rb{sub 2}[(UO{sub 2}){sub 2}B{sub 13}O{sub 20}(OH){sub 5}] (RbUBO-1) and Rb[(UO{sub 2}){sub 2}B{sub 10}O{sub 16}(OH){sub 3}]·0.7H{sub 2}O (RbUBO-2). The latter is isotypic with KUBO-3. These compounds share a common structural motif consisting of a linear uranyl, UO{sub 2}{sup 2+},more » cation surrounded by BO{sub 3} triangles and BO{sub 4} tetrahedra to create an UO{sub 8} hexagonal bipyramidal environment around uranium. The borate anions bridge between uranyl units to create sheets. Additional BO{sub 3} triangles extend from the polyborate layers and are directed approximately perpendicular to the sheets. All of these compounds adopt layered structures. With the exception of KUBO-1, the structures are all centrosymmetric. All of these compounds fluoresce when irradiated with long-wavelength UV light. The fluorescence spectrum yields well-defined vibronically coupled charge-transfer features.« less
  • The use of molten boric acid as a reactive flux for synthesizing actinide borates has been developed in the past two years providing access to a remarkable array of exotic materials with both unusual structures and unprecedented properties. [ThB₅O₆(OH)₆][BO(OH)₂]·2.5H₂O possesses a cationic supertetrahedral structure and displays remarkable anion exchange properties with high selectivity for TcO 4 - Uranyl borates form noncentrosymmetric structures with extraordinarily rich topological relationships. Neptunium borates are often mixed-valent and yield rare examples of compounds with one metal in three different oxidation states. Plutonium borates display new coordination chemistry for trivalent actinides. Finally, americium borates show amore » dramatic departure from plutonium borates, and there are scant examples of families of actinides compounds that extend past plutonium to examine the bonding of later actinides. There are several grand challenges that this work addresses. The foremost of these challenges is the development of structure-property relationships in transuranium materials. A deep understanding of the materials chemistry of actinides will likely lead to the development of advanced waste forms for radionuclides present in nuclear waste that prevent their transport in the environment. This work may have also uncovered the solubility-limiting phases of actinides in some repositories, and allows for measurements on the stability of these materials.« less