Synthesis and structures of titanium and zirconium trisiloxides

Clemens Krempner; Ulrike Jäger-Fiedler; Martin Köckerling; Helmut Reinke

doi:10.1021/om800930s

Synthesis and structures of titanium and zirconium trisiloxides

Clemens Krempner, Ulrike Jäger-Fiedler, Martin Köckerling, Helmut Reinke

Chemistry and Biochemistry

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Abstract

The synthesis and structures of zirconium and titanium trisiloxides containing the tridentate ligand [MeSi(RMeSiO) ₃] ^3- (rac-l,l-3)-3H (R = Si(SiMe ₃) ₂Me) are reported. Reactions of rac-1,1-3 with M(OEt) ₄, where M = Ti or Zr, gave tridentate complexes of formula [MeSi(RMeSiO) ₃]MOEt (1,1-4, M = Ti; 1,1-5, M = Zr). In striking contrast, treatment of rac-1,1-3 with Zr(NEt) ₄ afforded the spirocyclic complex {[MeSi(RMeSiO) ₃] ₂Zr} H ₂ (1,1-7). These compounds feature bicyclooctane structures, which are hitherto unknown in the chemistry of metal siloxides.

Original language	English
Pages (from-to)	382-385
Number of pages	4
Journal	Organometallics
Volume	28
Issue number	1
DOIs	https://doi.org/10.1021/om800930s
State	Published - Jan 12 2009

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title = "Synthesis and structures of titanium and zirconium trisiloxides",

abstract = "The synthesis and structures of zirconium and titanium trisiloxides containing the tridentate ligand [MeSi(RMeSiO) 3] 3- (rac-l,l-3)-3H (R = Si(SiMe 3) 2Me) are reported. Reactions of rac-1,1-3 with M(OEt) 4, where M = Ti or Zr, gave tridentate complexes of formula [MeSi(RMeSiO) 3]MOEt (1,1-4, M = Ti; 1,1-5, M = Zr). In striking contrast, treatment of rac-1,1-3 with Zr(NEt) 4 afforded the spirocyclic complex {[MeSi(RMeSiO) 3] 2Zr} H 2 (1,1-7). These compounds feature bicyclooctane structures, which are hitherto unknown in the chemistry of metal siloxides.",

author = "Clemens Krempner and Ulrike J{\"a}ger-Fiedler and Martin K{\"o}ckerling and Helmut Reinke",

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T1 - Synthesis and structures of titanium and zirconium trisiloxides

AU - Krempner, Clemens

AU - Jäger-Fiedler, Ulrike

AU - Köckerling, Martin

AU - Reinke, Helmut

PY - 2009/1/12

Y1 - 2009/1/12

N2 - The synthesis and structures of zirconium and titanium trisiloxides containing the tridentate ligand [MeSi(RMeSiO) 3] 3- (rac-l,l-3)-3H (R = Si(SiMe 3) 2Me) are reported. Reactions of rac-1,1-3 with M(OEt) 4, where M = Ti or Zr, gave tridentate complexes of formula [MeSi(RMeSiO) 3]MOEt (1,1-4, M = Ti; 1,1-5, M = Zr). In striking contrast, treatment of rac-1,1-3 with Zr(NEt) 4 afforded the spirocyclic complex {[MeSi(RMeSiO) 3] 2Zr} H 2 (1,1-7). These compounds feature bicyclooctane structures, which are hitherto unknown in the chemistry of metal siloxides.

AB - The synthesis and structures of zirconium and titanium trisiloxides containing the tridentate ligand [MeSi(RMeSiO) 3] 3- (rac-l,l-3)-3H (R = Si(SiMe 3) 2Me) are reported. Reactions of rac-1,1-3 with M(OEt) 4, where M = Ti or Zr, gave tridentate complexes of formula [MeSi(RMeSiO) 3]MOEt (1,1-4, M = Ti; 1,1-5, M = Zr). In striking contrast, treatment of rac-1,1-3 with Zr(NEt) 4 afforded the spirocyclic complex {[MeSi(RMeSiO) 3] 2Zr} H 2 (1,1-7). These compounds feature bicyclooctane structures, which are hitherto unknown in the chemistry of metal siloxides.

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