Synthesis and Structure of Polymeric Networks of Silver Hexafluroacetylacetonate Complexes of THF, Toluene, and vinyltrimethylsilane
W J. Evans, D G. Giarikos, Daniel Josell, J W. Ziller
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.
, Giarikos, D.
, Josell, D.
and Ziller, J.
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 December 2, 2023)