نتایج جستجو برای: metallocene

تعداد نتایج: 467  

Journal: :Dalton transactions 2012
Matthew Jeletic Frédéric A Perras Serge I Gorelsky Jennifer J Le Roy Ilia Korobkov David L Bryce Muralee Murugesu

A tetralithio salt (1) derived by treating 1,4-bis(trimethylsilyl)-cyclooctatriene with (n)BuLi serves as the first structural evidence for a multi-alkali metallocene. Single-crystal XRD confirms two Li(+) each asymmetrically bind to η(3) and η(4) between two COT'' rings and two Li(+) terminally bind to η(3). Solid-state NMR studies confirm the presence of two distinct lithium ion sites while t...

Journal: :Molecules 2005
Bunjerd Jongsomjit Sutti Ngamposri Piyasan Praserthdam

Activities during ethylene/1-hexene copolymerization were found to increase using the mixed titania/silica-supported MAO with rac-Et[Ind]2ZrCl2 metallocene catalyst. Energy Dispersive X-ray spectorcopy (EDX) indicated that the titania was apparently located on the outer surface of silica and acted as a spacer to anchor MAO to the silica surface. IR spectra revealed the Si-O-Ti stretching at 980...

Journal: :Journal of Physical Chemistry C 2022

Intercalating redox-active molecules into layered materials expands their functionality for emerging energy technologies. However, the mechanism of charge transfer to and from these small within confined environment host material role in storge are largely unexplored. Herein, we examine processes metallocene intercalated transition metal dichalcogenides, including MoS2 WS2. Combining experiment...

Journal: :Journal of Polymer Science Part A: Polymer Chemistry 2004

2012
Andreas Orthaber Rolfe H. Herber Rudolf Pietschnig

The lithiation of ferrocenylphosphane Fc-PH(2) (Fc = -C(5)H(4)FeC(5)H(5)) has been reinvestigated and both Fc-PHLi and Fc-PLi(2) have been identified by NMR-spectroscopy. The lithiated phosphanides have been converted to the corresponding mono and bis(silylated) species the latter of which gave synthetic access to an oligomer in which three ferrocene units are symmetrically connected by phospha...

2004
T. Mizutani H. Semi K. Kaneko

The space charge distribution in low-density polyethylene (LDPE) was measured with the pulsed electroacoustic (PEA) method. We used three types of LDPE: LDPE-L and LDPE-H were prepared by the high pressure process, and m-LDPE was polymerized with a metallocene catalyst. Space charge in LDPE strongly depended upon the electrode material. Semiconductive electrodes enhanced carrier injection into ...

2010
Fanghua Zhu Yuancheng Qin Jiehong Lei Lin Zhang Qiang Yin

The title compound, [Ti(C(5)H(5))(2)(C(16)H(11)NO(5))]·H(2)O, exhibits a titanocene unit coordinated to a styrene-substituted pyridine-2,6-dicarboxyl-ate ligand synthesized for use as a monomer for polymerization or copolymerization yielding metallocene-containing polymers. The compound crystallized as a monohydrate and the solvent water mol-ecule forms strong O-H⋯O hydrogen bonds with the carb...

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