A Single Small-Scale Plutonium Redox Reaction System Yields Three Crystallographically-Characterizable Organoplutonium Complexes
Abstract
Here, an approach to obtaining substantial amounts of data from a hazardous starting material that can only be obtained and handled in small quantities is demonstrated by the investigation of a single small-scale reaction of cyclooctatetraene, C8H8, with a solution obtained from the reduction of Cp'3Pu (Cp' = C5H4SiMe3) with potassium graphite. This one reaction coupled with oxidation of a product has provided single-crystal X-ray structural data on three organoplutonium compounds as well as information on redox chemistry thereby demonstrating an efficient route to new reactivity and structural information on this highly radioactive element. The crystal structures were obtained from the reduction of C8H8 by a putative Pu(II) complex, (Cp'3PuII)1–, generated in situ, to form the Pu(III) cyclooctatetraenide complex, [K(crypt)][(C8H8)2PuIII], 1-Pu, and the tetra(cyclopentadienyl) Pu(III) complex, [K(crypt)][Cp'4PuIII], 2-Pu. Oxidation of the sample of 1-Pu with Ag(I) afforded a third organoplutonium complex that has been structurally characterized for the first time, (C8H8)2PuIV, 3-Pu. Complexes 1-Pu and 3-Pu contain Pu sandwiched between parallel (C8H8)2– rings. The (Cp'4PuIII)– anion in 2-Pu features three η5-Cp' rings and one η1-Cp' ring, which is a rare example of a formal Pu–C η1-bond. In addition, this study addresses the challenge of small-scale synthesis imparted by radiological andmore »
- Authors:
-
[1];
[2];
[2];
[3];
[4];
[4];
[3];
[2];
[2]
- Florida State Univ., Tallahassee, FL (United States); Univ. of California, Irvine, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Chemistry Division
- Florida State Univ., Tallahassee, FL (United States)
- Univ. of California, Irvine, CA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Chemistry Division
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS)
- OSTI Identifier:
- 1680020
- Report Number(s):
- LA-UR-20-23097
Journal ID: ISSN 0020-1669; TRN: US2204036
- Grant/Contract Number:
- 89233218CNA000001; SC0016568; FG02-13ER16414; SC0004739; AC52- 06NA25396; AC05-060R23100
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Inorganic Chemistry
- Additional Journal Information:
- Journal Volume: 59; Journal Issue: 18; Journal ID: ISSN 0020-1669
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; redox reactions; plutonium; organic polymers; lanthanides; actinides
Citation Formats
Windorff, Cory J., Sperling, Joseph M., Albrecht-Schönzart, Thomas E., Bai, Zhuanling, Evans, William J., Gaiser, Alyssa N., Gaunt, Andrew J., Goodwin, Conrad P., Hobart, David E., Huffman, Zachary K., Huh, Daniel N., Klamm, Bonnie E., Poe, Todd N., and Warzecha, Evan. A Single Small-Scale Plutonium Redox Reaction System Yields Three Crystallographically-Characterizable Organoplutonium Complexes. United States: N. p., 2020.
Web. doi:10.1021/acs.inorgchem.0c01671.
Windorff, Cory J., Sperling, Joseph M., Albrecht-Schönzart, Thomas E., Bai, Zhuanling, Evans, William J., Gaiser, Alyssa N., Gaunt, Andrew J., Goodwin, Conrad P., Hobart, David E., Huffman, Zachary K., Huh, Daniel N., Klamm, Bonnie E., Poe, Todd N., & Warzecha, Evan. A Single Small-Scale Plutonium Redox Reaction System Yields Three Crystallographically-Characterizable Organoplutonium Complexes. United States. https://doi.org/10.1021/acs.inorgchem.0c01671
Windorff, Cory J., Sperling, Joseph M., Albrecht-Schönzart, Thomas E., Bai, Zhuanling, Evans, William J., Gaiser, Alyssa N., Gaunt, Andrew J., Goodwin, Conrad P., Hobart, David E., Huffman, Zachary K., Huh, Daniel N., Klamm, Bonnie E., Poe, Todd N., and Warzecha, Evan. Thu .
"A Single Small-Scale Plutonium Redox Reaction System Yields Three Crystallographically-Characterizable Organoplutonium Complexes". United States. https://doi.org/10.1021/acs.inorgchem.0c01671. https://www.osti.gov/servlets/purl/1680020.
@article{osti_1680020,
title = {A Single Small-Scale Plutonium Redox Reaction System Yields Three Crystallographically-Characterizable Organoplutonium Complexes},
author = {Windorff, Cory J. and Sperling, Joseph M. and Albrecht-Schönzart, Thomas E. and Bai, Zhuanling and Evans, William J. and Gaiser, Alyssa N. and Gaunt, Andrew J. and Goodwin, Conrad P. and Hobart, David E. and Huffman, Zachary K. and Huh, Daniel N. and Klamm, Bonnie E. and Poe, Todd N. and Warzecha, Evan},
abstractNote = {Here, an approach to obtaining substantial amounts of data from a hazardous starting material that can only be obtained and handled in small quantities is demonstrated by the investigation of a single small-scale reaction of cyclooctatetraene, C8H8, with a solution obtained from the reduction of Cp'3Pu (Cp' = C5H4SiMe3) with potassium graphite. This one reaction coupled with oxidation of a product has provided single-crystal X-ray structural data on three organoplutonium compounds as well as information on redox chemistry thereby demonstrating an efficient route to new reactivity and structural information on this highly radioactive element. The crystal structures were obtained from the reduction of C8H8 by a putative Pu(II) complex, (Cp'3PuII)1–, generated in situ, to form the Pu(III) cyclooctatetraenide complex, [K(crypt)][(C8H8)2PuIII], 1-Pu, and the tetra(cyclopentadienyl) Pu(III) complex, [K(crypt)][Cp'4PuIII], 2-Pu. Oxidation of the sample of 1-Pu with Ag(I) afforded a third organoplutonium complex that has been structurally characterized for the first time, (C8H8)2PuIV, 3-Pu. Complexes 1-Pu and 3-Pu contain Pu sandwiched between parallel (C8H8)2– rings. The (Cp'4PuIII)– anion in 2-Pu features three η5-Cp' rings and one η1-Cp' ring, which is a rare example of a formal Pu–C η1-bond. In addition, this study addresses the challenge of small-scale synthesis imparted by radiological and material availability of transuranium isotopes, in particular that of pure metal samples. A route to an anhydrous Pu(III) starting material from the more readily available PuIVO2 was developed to facilitate reproducible syntheses and allow complete spectroscopic analysis of 1-Pu and 2-Pu. PuIVO2 was converted to PuIIIBr3(DME)2 (DME = CH3OCH2CH2OCH3) and subsequently PuIIIBr3(THF)x, which was used to independently synthesize 1-Pu, 2-Pu, and 3-Pu.},
doi = {10.1021/acs.inorgchem.0c01671},
journal = {Inorganic Chemistry},
number = 18,
volume = 59,
place = {United States},
year = {Thu Sep 10 00:00:00 EDT 2020},
month = {Thu Sep 10 00:00:00 EDT 2020}
}
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