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Synthesis and Structure of Polymeric Networks of Silver Hexafluroacetylacetonate Complexes of THF, Toluene, and vinyltrimethylsilane

Published

Author(s)

W J. Evans, D G. Giarikos, Daniel Josell, J W. Ziller

Abstract

The reaction of 1,1,1,5,5,5-hexafluoro-acetylacetone (Hhfac) with Ag2O in the presence of L = THF, toluene, and Me3SiCH=CH2, was studied to obtain [Ag(hfac)L]x complexes for use as chemical vapor deposition precursors. The structures and volatilities of these three complexes were compared to those of the previously synthesized Ag(hfac)(Me3SiC=CSiMe3), 1, which was also crystallographically characterized for comparison. The reaction of Ag2O with Hhfac in THF forms the polymeric complex [Ag4(hfac)4(THF)2], 2, which has tetrametallic subunits with hfac ligands that bridge via oxygen and carbon. Both 4 and 5 coordinate silver metal centers are found in 2. Ag2O reacts with Hhfac in toluene to form a complex with a similar tetrametallic unit [Ag4(hfac)4(toluene)2], 3. In this case, the tetrametallic subunits are assembled via bridging toluene molecules and each silver is 6 coordinate. In the presence of excess vinyltrimethylsilane (vtms), Ag2O and Hhfac form [Ag3(hfac)3(vtms)], 4, which contains trimetallic subunits assembled via oxygen atoms of bridging hfac ligands and 5 and 6 coordinate silver.
Citation
Inorganic Chemistry
Volume
42
Issue
No. 25

Keywords

chemical vapor deposition, crystallographically

Citation

Evans, W. , Giarikos, D. , Josell, D. and Ziller, J. (2003), Synthesis and Structure of Polymeric Networks of Silver Hexafluroacetylacetonate Complexes of THF, Toluene, and vinyltrimethylsilane, Inorganic Chemistry, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=853295 (Accessed May 26, 2024)

Issues

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Created November 30, 2003, Updated October 12, 2021