A Reactivity Change of a Strontium Monohydroxide by Umpolung to an Acid

A Reactivity Change of a Strontium Monohydroxide by Umpolung to an Acid

Controlled hydrolysis of strontium amide LSrN(SiMe3)2(thf) (L = CH(CMe2,6-i-Pr2C6H3N)2) (1) gave an unprecedented example of a hydrocarbon-soluble strontium hydroxide, [LSr(thf)(μ-OH)2Sr(thf)2L] (2). In compound 2, the tetrahydrofuran (THF) molecules can easily replaced by benzophenone and triphenyl...

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Bibliographic Details
Published in:Inorganic chemistry Vol. 47; no. 13; pp. 5971 - 5977
Main Authors: Sarish, Sankaranarayanapillai, Nembenna, Sharanappa, Nagendran, Selvarajan, Roesky, Herbert W, Pal, Aritra, Herbst-Irmer, Regine, Ringe, Arne, Magull, Jörg
Format: Journal Article
Language:English
Published: United States American Chemical Society 07-07-2008
Subjects:
Amides
Hydrolysis
Hydroxides
Oxides
Solid state
Strontium
Tetrahydrofuran
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Summary:Controlled hydrolysis of strontium amide LSrN(SiMe3)2(thf) (L = CH(CMe2,6-i-Pr2C6H3N)2) (1) gave an unprecedented example of a hydrocarbon-soluble strontium hydroxide, [LSr(thf)(μ-OH)2Sr(thf)2L] (2). In compound 2, the tetrahydrofuran (THF) molecules can easily replaced by benzophenone and triphenylphosphine oxide to yield [LSr(μ-OH)(OCPh2)]2 (3) and [LSr(μ-OH)(OPPh3)]2 (4) compounds. Among the two strontium atoms of 2, one is coordinated to a single THF molecule, while the other is coordinated to two THF molecules. Interestingly, strontium hydroxide complex 2 behaves as an acid in its reaction with Zr(NMe2)4 and results in a heterobimetallic oxide, [LSr(μ-O)Zr(NMe2)3]2 (5). Compound 5 is dimeric in the solid state and contains a Sr2Zr2O2 core.
Bibliography:ark:/67375/TPS-ZL5875CM-R
X-ray data for 1−5 (CIF). This material is available free of charge via the Internet at http://pubs.acs.org.
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ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0020-1669
1520-510X
DOI:10.1021/ic800284u