A titanium(III) tweezer complex with an embedded alkali metal ion between diynyl ligands: [(C 5HMe 4) 2Ti( η1−CCCCSiMe 3) 2] −[Li(THF) 2]

The complex [( η 5−C 5HMe 4) 2Ti( η 1−CCCCSiMe 3) 2] −[Li(THF) 2] + ( 1) was obtained by the reaction of (C 5HMe 4) 2TiCl with 2 equiv. of LiCCCCSiMe 3 in THF. X-Ray crystal structure determination of 1 revealed that the lithium ion is embedded between the inner triple bonds of 4-trimethylsilyl-...

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Bibliographic Details
Published in:Journal of organometallic chemistry 1996, Vol.506 (1), p.109-112
Main Authors: Varga, Vojtech, Mach, Karel, Hiller, Jörg, Thewalt, Ulf
Format: Article
Language:English
Subjects:
Electron spin resonance
Lithium
Molecular tweezer
Titanium (III)
X-ray diffraction
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Summary:The complex [( η 5−C 5HMe 4) 2Ti( η 1−CCCCSiMe 3) 2] −[Li(THF) 2] + ( 1) was obtained by the reaction of (C 5HMe 4) 2TiCl with 2 equiv. of LiCCCCSiMe 3 in THF. X-Ray crystal structure determination of 1 revealed that the lithium ion is embedded between the inner triple bonds of 4-trimethylsilyl-1,3-butadiyn-1-yl tweezer arms. The EPR spectrum of 1 shows a single line, ΔH = 2.5 G at g = 1.9940 (±0.0003), and coupling to 49Ti and 47Ti isotopes a (Ti) = 7.5 G.
ISSN:0022-328X
1872-8561
DOI:10.1016/0022-328X(95)05652-6