TITANOCENE AND ansa-TITANOCENE COMPLEXES BEARING 2,6-BIS(ISOPROPYL)PHENOXIDE LIGAND(S). SYNTHESES, CHARACTERIZATION AND USE IN CATALYTIC DEHYDROCOUPLING POLYMERIZATION OF PHENYLSILANE

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10106306" target="_blank" >RIV/00216208:11310/11:10106306 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/11:00358409 RIV/61388955:_____/11:00358409 RIV/60461373:22310/11:43875632
Result on the web
<a href="http://dx.doi.org/10.1135/cccc2010133" target="_blank" >http://dx.doi.org/10.1135/cccc2010133</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1135/cccc2010133" target="_blank" >10.1135/cccc2010133</a>

Result language
angličtina
Original language name
TITANOCENE AND ansa-TITANOCENE COMPLEXES BEARING 2,6-BIS(ISOPROPYL)PHENOXIDE LIGAND(S). SYNTHESES, CHARACTERIZATION AND USE IN CATALYTIC DEHYDROCOUPLING POLYMERIZATION OF PHENYLSILANE
Original language description
Aryloxychloro and bis(aryloxy) titanocenes of general formula L2TiCl2-x(OAr')(x) where L = eta(5)-C5H5 (x = 1 (1) and 2 (2)), L-2 = SiMe2(eta(5)-C5H4)(2) (x = 1 (3) and 2 (4)), and Ar' = 2,6-(CHMe2)(2)C6H3 were prepared by the reaction of corresponding titanocene dichloride with LiOAr' and characterized by spectroscopic methods and compound 3 by single crystal X-ray diffraction analysis. The bulky aryloxy ligand in 1 and 3 exerts a hindered rotation around the Ti-O bond on the H-1 NMR time scale, resulting in its dynamic behavior in CDCl3 solution. Variable temperature NMR measurements proved the rotation barrier in 3 (Delta G(298)(double dagger) = 13.9 +/- 0.3 kcal/mol) to be lower than that in 1 (Delta G(298)(double dagger) = 14.7 +/- 0.2 kcal/mol) as a consequence of the more open titanocene shell in the ansa-structure of 3.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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