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Title: Alkali metal yttrium neo-pentoxide double alkoxide precursors to alkali metal yttrium oxide nanomaterials

In this study, a series of alkali metal yttrium neo-pentoxide ([AY(ONep) 4]) compounds were developed as precursors to alkali yttrium oxide (AYO 2) nanomaterials. The reaction of yttrium amide ([Y(NR 2) 3] where R=Si(CH 3) 3) with four equivalents of H-ONep followed by addition of [A(NR 2)] (A=Li, Na, K) or A o (A o=Rb, Cs) led to the formation of a complex series of A nY(ONep) 3+n species, crystallographically identified as [Y 2Li 33-ONep)(μ 3-HONep)(μ-ONep) 5(ONep) 3(HONep) 2] (1), [YNa 23-ONep) 4(ONep)] 2 (2), {[Y 2K 33-ONep) 3(μ-ONep) 4(ONep) 2(ηξ-tol) 2][Y 4K 24-O)(μ 3-ONep) 8(ONep) 4]•η x-tol]} (3), [Y 4K 24-O)(μ 3-ONep) 8(ONep) 4] (3a), [Y 2Rb 34-ONep) 3(μ-ONep) 6] (4), and [Y 2Cs 46-O)(μ 3-ONep) 63-HONep) 2(ONep) 2x-tol) 4]•tol (5). Compounds 1–5 were investigated as single source precursors to AYOx nanomaterials following solvothermal routes (pyridine, 185 °C for 24h). The final products after thermal processing were found by powder X-ray diffraction experiments to be Y 2O 3 with variable sized particles based on transmission electron diffraction. Energy dispersive X-ray spectroscopy studies indicated that the heavier alkali metal species were present in the isolated nanomaterials.
Authors:
 [1] ;  [1] ;  [1] ;  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Univ. of Hawaii, Honolulu, HI (United States)
Publication Date:
Report Number(s):
SAND-2016-1744J
Journal ID: ISSN 2365-6549; 619560
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Chemistry Select
Additional Journal Information:
Journal Volume: 1; Journal Issue: 3; Journal ID: ISSN 2365-6549
Publisher:
Wiley
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; alkoxides; yttrium; alkali metal; neo-pentoxide; nanomaterials
OSTI Identifier:
1249092

Boyle, Timothy J., Neville, Michael L., Sears, Jeremiah Matthew, and Cramer, Roger. Alkali metal yttrium neo-pentoxide double alkoxide precursors to alkali metal yttrium oxide nanomaterials. United States: N. p., Web. doi:10.1002/slct.201600138.
Boyle, Timothy J., Neville, Michael L., Sears, Jeremiah Matthew, & Cramer, Roger. Alkali metal yttrium neo-pentoxide double alkoxide precursors to alkali metal yttrium oxide nanomaterials. United States. doi:10.1002/slct.201600138.
Boyle, Timothy J., Neville, Michael L., Sears, Jeremiah Matthew, and Cramer, Roger. 2016. "Alkali metal yttrium neo-pentoxide double alkoxide precursors to alkali metal yttrium oxide nanomaterials". United States. doi:10.1002/slct.201600138. https://www.osti.gov/servlets/purl/1249092.
@article{osti_1249092,
title = {Alkali metal yttrium neo-pentoxide double alkoxide precursors to alkali metal yttrium oxide nanomaterials},
author = {Boyle, Timothy J. and Neville, Michael L. and Sears, Jeremiah Matthew and Cramer, Roger},
abstractNote = {In this study, a series of alkali metal yttrium neo-pentoxide ([AY(ONep)4]) compounds were developed as precursors to alkali yttrium oxide (AYO2) nanomaterials. The reaction of yttrium amide ([Y(NR2)3] where R=Si(CH3)3) with four equivalents of H-ONep followed by addition of [A(NR2)] (A=Li, Na, K) or Ao (Ao=Rb, Cs) led to the formation of a complex series of AnY(ONep)3+n species, crystallographically identified as [Y2Li3(μ3-ONep)(μ3-HONep)(μ-ONep)5(ONep)3(HONep)2] (1), [YNa2(μ3-ONep)4(ONep)]2 (2), {[Y2K3(μ3-ONep)3(μ-ONep)4(ONep)2(ηξ-tol)2][Y4K2(μ4-O)(μ3-ONep)8(ONep)4]•ηx-tol]} (3), [Y4K2(μ4-O)(μ3-ONep)8(ONep)4] (3a), [Y2Rb3(μ4-ONep)3(μ-ONep)6] (4), and [Y2Cs4(μ6-O)(μ3-ONep)6(μ3-HONep)2(ONep)2(ηx-tol)4]•tol (5). Compounds 1–5 were investigated as single source precursors to AYOx nanomaterials following solvothermal routes (pyridine, 185 °C for 24h). The final products after thermal processing were found by powder X-ray diffraction experiments to be Y2O3 with variable sized particles based on transmission electron diffraction. Energy dispersive X-ray spectroscopy studies indicated that the heavier alkali metal species were present in the isolated nanomaterials.},
doi = {10.1002/slct.201600138},
journal = {Chemistry Select},
number = 3,
volume = 1,
place = {United States},
year = {2016},
month = {3}
}

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