Yttrocene Chloride and Methyl Complexes with Variously Substituted Cyclopentadienyl Ligands: Synthesis, Characterization, and Reactivity toward Ethylene

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39901651" target="_blank" >RIV/00216275:25310/16:39901651 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/ejic.201600390" target="_blank" >http://dx.doi.org/10.1002/ejic.201600390</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ejic.201600390" target="_blank" >10.1002/ejic.201600390</a>

Result language
angličtina
Original language name
Yttrocene Chloride and Methyl Complexes with Variously Substituted Cyclopentadienyl Ligands: Synthesis, Characterization, and Reactivity toward Ethylene
Original language description
The reaction of YCl3 center dot 3.5THF with 1 equiv. of Li(C5Me4SiMe3) afforded in high yield the ionic complex [Li(thf)(4)](+){[(eta(5)-C5Me4SiMe3)YCl2](4)(mu(4)-Cl)}(-) (1). The molecule of 1 consists of the tetranuclear anion {[(eta(5)-C5Me4SiMe3)YCl2](4)(mu(4)-Cl)}(-) compensated with [Li(thf)(4)](+) in the solid state. Reactions of compound 1 with selected lithium and potassium cyclopentadienides resulted in the formation of yttrocene chloride complexes [(eta(5)-C5Me4SiMe3)Y(L)(mu-Cl)(2)M(thf)(2)] [M = Li, L = eta(5)-C5H5 (2); M = Li, L = eta(5)-C5Me5 (3); M = Li, L = eta(5)-C5Me4SiMe2H (4); M = K, L = eta(5)-C5Me4CH2Ph (5)]. Yttrocene chloride complexes 2-5 underwent methylation reactions to give yttrocene methyl complexes [(eta(5)-C5Me4SiMe3)Y(L)(mu-Me)(2)Li(thf)(2)] [L = eta(5)-C5H5 (6); L = eta(5)-C5Me5 (7); L = eta(5)-C5Me4SiMe2H (8); L = eta(5)-C5Me4CH2Ph (9)]. The products of all these reactions were characterized by NMR and IR spectroscopy, and 2-5 were further studied by ESI mass spectrometry. The molecular structures of 1 and 4 were determined by single-crystal XRD. The methyl-bridged complexes 6-9 were tested as homogeneous catalysts for ethylene polymerization in the absence of cocatalysts.
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
CA - Inorganic chemistry
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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