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Lanthanide silanolates: Development of new procedures for the modification of silicones with rare‐earth metals
Author(s) -
Voskoboynikov Alexander Z.,
Beletskaya Irina P.
Publication year - 1995
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590090517
Subject(s) - lanthanide , chemistry , rare earth , yield (engineering) , nuclear chemistry , potassium , inorganic chemistry , sodium , organic chemistry , ion , mineralogy , metallurgy , materials science
The reactions of Lnl3 3 (Ln = La, Ce, Er, Yb) with sodium silanolate (NaOSiMe 3 ) in THF at room temperature yield lanthanide silanolates Ln(OSiMe 3 ) 3 which seem to be oligomers with μ‐OSiMe 3 ligands. Reaction of Cel 3 with potassium siliconate, KO[Me 1.96 Ph 0.04 SiO] 20.75 K, yields a netted polymer [Me 61.59 Ph 1.29 Si 31.44 O 39.02 Ce] x . An analogous procedure which involves reaction of Lnl 3 (Ln = Ln, Er) with KO[Me 1.96 Ph 0.04 SiO] 50.00 K, and following treatment with NaOSiMe 3 , results in the formation of solublé product (Me 3 SiO) 2 LnO[Me 1.96 Ph 0.04 SiO] 50.00 Ln(OSiMe 3 ) 2 .