Highly substituted zirconium and hafnium cyclopentadienyl bifunctional ?-diketiminate complexes ? Synthesis, structure, and catalytic activity towards ethylene polymerization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00443392" target="_blank" >RIV/61388955:_____/15:00443392 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jorganchem.2015.03.014" target="_blank" >http://dx.doi.org/10.1016/j.jorganchem.2015.03.014</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jorganchem.2015.03.014" target="_blank" >10.1016/j.jorganchem.2015.03.014</a>

Result language
angličtina
Original language name
Highly substituted zirconium and hafnium cyclopentadienyl bifunctional ?-diketiminate complexes ? Synthesis, structure, and catalytic activity towards ethylene polymerization
Original language description
A series of tetramethyl-(Cp) and pentamethylcyclopentadienyl (Cp*) metal complexes (?5-C5Me4R)ZrCl2LCO (R = H(1), Me(2)) and (?5-C5Me4R)HfCl2LCO (R = H(3), Me(4)) where LCO is a bifunctional ?-diketiminate ligand [2-(MeO)?C6H4)]NC(Me)CHC(Me)N[2-(MeO)?C6H4)] (LCO) were prepared from corresponding tetramethyl- and (pentamethylcyclopentadienyl)metal trichlorides and the lithium precursor LiLCO. All complexes were characterized by their melting point, elemental analysis, 1H and 13C NMR spectroscopy, IR spectroscopy. In addition their solid-state structures were determined by X-ray diffraction techniques. In all cases, a pseudo-tetragonal pyramidal coordination environment of the metal centre with cyclopentadienyl ligand on the top and nearly isobidentatelybonded nitrogen atoms of the chelating LCO ligand in an open ?5-fashion was observed. The oxygen atoms positioned at the diketiminate periphery remained uncoordinated to transition metal in the solid phase as well as in solution. Besides
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
<a href="/en/project/GAP106%2F10%2F0924" target="_blank" >GAP106/10/0924: The electron deficient transition metal complexes containing bifunctional beta-diketiminate and cyclopentadienyl ligands ? design of new catalysts.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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