التفاصيل البيبلوغرافية
| العنوان: |
Expanding the Chemistry of Molecular U2+Complexes: Synthesis, Characterization, and Reactivity of the {[C5H3(SiMe3)2]3U}−Anion |
| المؤلفون: |
Jeffrey R. Long, William J. Evans, Joseph W. Ziller, Katie R. Meihaus, Cory J. Windorff, Matthew R. MacDonald |
| المصدر: |
Windorff, CJ; MacDonald, MR; Meihaus, KR; Ziller, JW; Long, JR; & Evans, WJ. (2016). Expanding the Chemistry of Molecular U2+Complexes: Synthesis, Characterization, and Reactivity of the {[C5H3(SiMe3)2]3U}-Anion. Chemistry-A European Journal, 22(2), 772-782. doi: 10.1002/chem.201503583. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/48s601vn |
| بيانات النشر: |
Wiley, 2015. |
| سنة النشر: |
2015 |
| مصطلحات موضوعية: |
Uranium hydride, 010405 organic chemistry, Chemistry, Organic Chemistry, Inorganic chemistry, General Chemistry, Vis spectra, 010402 general chemistry, 01 natural sciences, Magnetic susceptibility, Catalysis, 0104 chemical sciences, Ion, chemistry.chemical_compound, Cyclooctatetraene, Crystallography, Uranocene, Reactivity (chemistry), Spectroscopy |
| الوصف: |
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. The synthesis of new molecular complexes of U2+has been pursued to make comparisons in structure, physical properties, and reactivity with the first U2+complex, [K(2.2.2-cryptand)][Cp′3U], 1 (Cp′=C5H4SiMe3). Reduction of Cp″3U [Cp″=C5H3(SiMe3)2] with KC8in the presence of 2.2.2-cryptand or 18-crown-6 generates [K(2.2.2-cryptand)][Cp″3U], 2-K(crypt), or [K(18-crown-6)(THF)2][Cp″3U], 2-K(18c6), respectively. The UV/Vis spectra of 2-K and 1 are similar, and they are much more intense than those of U3+analogues. Variable temperature magnetic susceptibility data for 1 and 2-K(crypt) reveal lower room temperature χMT values relative to the experimental values for the 5f3U3+precursors. Stability studies monitored by UV/Vis spectroscopy show that 2-K(crypt) and 2-K(18c6) have t1/2values of 20 and 15 h at room temperature, respectively, vs. 1.5 h for 1. Complex 2-K(18c6) reacts with H2or PhSiH3to form the uranium hydride, [K(18-crown-6)(THF)2][Cp″3UH], 3. Complexes 1 and 2-K(18c6) both reduce cyclooctatetraene to form uranocene, (C8H8)2U, as well as the U3+byproducts [K(2.2.2-cryptand)][Cp′4U], 4, and Cp″3U, respectively. |
| وصف الملف: |
application/pdf |
| تدمد: |
0947-6539 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85aa807cb31e6143c1e89e10bfd423c3
https://doi.org/10.1002/chem.201503583 |
| حقوق: |
OPEN |
| رقم الأكسشن: |
edsair.doi.dedup.....85aa807cb31e6143c1e89e10bfd423c3 |
| قاعدة البيانات: |
OpenAIRE |
