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• W2989842962 abstract "The reaction of t -Bu 2 Si(OH) 2 with two equivalents of Cp 2 Zr(CH 3 ) 2 produces the title t -Bu 2 SiO 2 -siloxide bridged dimer, [Zr 2 (CH 3 ) 2 (C 5 H 5 ) 4 (C 8 H 18 O 2 Si)] or [Cp 2 Zr(CH 3 )]2[μ- t -Bu 2 SiO 2 ] ( 1 ), where one methyl group is retained per zirconium atom. The same product is obtained at room temperature even when equimolar ratios of the silanediol and Cp 2 Zr(CH 3 ) 2 are used. Attempts to thermally eliminate methane and produce a bridging methylene complex resulted in decomposition. The crystal structure of 1 displays typical Zr—CH 3 and Zr—O distances but the Si—O distance [1.628 (2) Å] and O—Si—O angle [110.86 (15)°] are among the largest observed in this family of compounds suggesting steric crowding between the t -Bu substituents of the silicon atom and the cyclopentadienyl groups. The silicon atom lies on a crystallographic twofold axis and both Cp rings are disordered over two orientations of equal occupancy." @default.
• W2989842962 created "2019-12-05" @default.
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• W2989842962 date "2019-11-08" @default.
• W2989842962 modified "2023-09-24" @default.
• W2989842962 title "(μ-Di-tert-butylsilanediolato)bis[bis(η5-cyclopentadienyl)methylzirconium]" @default.
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• W2989842962 doi "https://doi.org/10.1107/s2056989019014762" @default.
• W2989842962 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6895932" @default.
• W2989842962 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31871743" @default.
• W2989842962 hasPublicationYear "2019" @default.
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