Roy Copping
Lawrence Berkeley National Laboratory
12 Papers
63 Citations
Roy Copping is an academic researcher from Lawrence Berkeley National Laboratory. The author has contributed to research in topics: Ligand & Uranyl. The author has an hindex of 7, co-authored 12 publications. Previous affiliations of Roy Copping include Northwest University (United States).
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Papers
A comparison of 4f vs 5f metal-metal bonds in (CpSiMe3)3M-ECp* (M = Nd, U; E = Al, Ga; Cp* = C5Me5): synthesis, thermodynamics, magnetism, and electronic structure.
Stefan G. Minasian,Jamin L. Krinsky,Jeffrey D. Rinehart,Roy Copping,Tolek Tyliszczak,Markus Janousch,David K. Shuh,John Arnold +7 more
TL;DR: The overall experimental and computational bonding analysis suggests that C p*Al and Cp*Ga behave as good sigma-donors in these systems.
137
Investigating the electronic structure and bonding in uranyl compounds by combining NEXAFS spectroscopy and quantum chemistry
Clara Fillaux,Dominique Guillaumont,Jean-Claude Berthet,Roy Copping,David K. Shuh,Tolek Tyliszczak,Christophe Den Auwer +6 more
TL;DR: It is observed that the electron-donating or withdrawing character of the equatorial ligands has a measurable effect on features in the NEXAFS spectra of these species and thereby on the unoccupied molecular orbitals of {UO(2)}(2+).
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Pentavalent and tetravalent uranium selenides, Tl3Cu4USe6 and Tl2Ag2USe4: syntheses, characterization, and structural comparison to other layered actinide chalcogenide compounds.
Daniel E. Bugaris,Eun Sang Choi,Roy Copping,Per Anders Glans,Stefan G. Minasian,Stefan G. Minasian,Tolek Tyliszczak,Stosh A. Kozimor,David K. Shuh,James A. Ibers +9 more
TL;DR: X-ray absorption near-edge structure (XANES) results from scanning transmission X-ray spectromicroscopy confirm that Tl(3)Cu(4)USe(6) has Se bonding characteristic of discrete Se(2-) units, Cu bonding generally representative of Cu(+), and U bonding consistent with a U(4+) or U(5+) species.
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Toward equatorial planarity about uranyl: synthesis and structure of tridentate nitrogen-donor {UO2}2+ complexes.
Roy Copping,Byoungseon Jeon,Byoungseon Jeon,C. Das Pemmaraju,Shuao Wang,Simon J. Teat,Markus Janousch,Markus Janousch,Tolek Tyliszczak,Andrew Canning,Andrew Canning,Niels Grønbech-Jensen,Niels Grønbech-Jensen,David Prendergast,David K. Shuh +14 more
TL;DR: Crystallographic determination of 1-3 reveals that increased charge through ligand deprotonation and displacement of chloride leads to equatorial planarity about uranyl as well as a more compact overall coordination geometry.
18
Nuclear Resonance Fluorescence of 237 Np
Chris T. Angell,R. M. Yee,T. Joshi,E. Swanberg,Eric B. Norman,C. L. Hicks,Alexei V. Klimenko,Steve Korbly,Cody M. Wilson,W. D. Kulp,Glen A. Warren,Travis H. Bray,Roy Copping,Per-Anders Glans,Tolek Tyliszczak,David K. Shuh +15 more
TL;DR: In this article, nuclear resonance fluorescence (NRF) is used to identify and quantify isotopic content of fissile material in cargo containers, which can be used in identification and assay applications.
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