Results 271 to 280 of about 651,736 (310)

Electrophilic substitution of methoxybenzenes by pentadienyltricarbonyliron cations

Journal of Organometallic Chemistry, 1977
Abstract The kinetics of reactions of some open-chain pentadienyltricarbonyliron cations with 1,3-dimethoxy- and 1,3,5-trimethoxybenzene, for which observable equilibria are found, are discussed. These reactions contrast with those previously reported, which go essentially to completion.
Trevor G. Bonner, Keith A. Holder, Paul Powell, Elizabeth Styles   +3 more
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Photoinitiated Cationic Polymerization of Substituted Vinylcyclopropanes

Macromolecular Chemistry and Physics, 2005
AbstractSummary: The photoinitiated cationic polymerization of 1‐cyclopropyl‐l‐phenyl‐ethylene, 1‐cyclopropyl‐l‐(p‐methoxyphenyl)ethylene and 1‐cyclopropyl‐l‐(p‐fluorophenyl)ethylene at ambient temperatures in bulk and in solution was investigated using (η5‐2,4‐cyclopentadiene‐l‐yl)[l,2,3,4,5,6‐η] (l‐(methylethyl) benzene)iron(I) hexafluorophosphate ...
Aniss Abdo Al‐Doaiss, Wolfgang Günther, Elisabeth Klemm, Dietmar Stadermann   +3 more
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Regularities of cationic polymerization of substituted aziridines

Makromolekulare Chemie. Macromolecular Symposia, 1986
AbstractThe cationic polymerization of some ordinary N‐ and C‐substituted aziridines, initiated by the methyl etherate of boron trifluoride, shows a typical “temporarily living” character. Kinetic and spectroscopic data on the polymerization of N‐methyl‐aziridine under conditions under consideration as well as molecular mass characteristics of the ...
V.A. Ponomarenko, I.A. Chekulaeva, I.V. Lapshina, A.V. Ignatenko   +3 more
openaire   +1 more source

Selective Cation Exchange in Substituted Tobermorites

Journal of the American Ceramic Society, 1989
Selective cation exchange in tobermorites with three levels of Al 3+ and Na + substitution for Si 4+ has been investigated. The cation exchange selectivity for a tobermorite with 2 mol% Al 3+
Sridhar Komarneni, Masamichi Tsuji
openaire   +1 more source

Transport Properties and Cationic Substitutions in Sr2IrO4

Journal of Electronic Materials, 2009
We realized cationic substitutions in Sr2IrO4 and measured resistivity, thermoelectric power, and the Hall coefficient. A two-carrier model, reflecting the presence of thermally activated carriers at high temperature, qualitatively explains the behavior of the Hall coefficient of Sr1.95La0.05IrO4 in comparison with Sr2IrO4.
Y. Klein, I. Terasaki
openaire   +1 more source

Butadiynyl-substituted vinyl cations

The Journal of Organic Chemistry, 1982
Mladen Ladika, Peter J. Stang, Melvyn D. Schiavelli, Michael R. Hughey   +3 more
openaire   +1 more source

Silicon-substituted cyclopropylcarbinyl cations

The Journal of Organic Chemistry, 1982
Barry B. Snider, Michael Karras
openaire   +1 more source

The cationic polymerization of substituted acetylenes

Journal of Polymer Science Part B: Polymer Letters, 1964
C. E. H. Bawn, B. E. Lee, A. M. North
openaire   +1 more source

Cationic aromatic substitution at the bridgehead of 1-substituted apocamphanes

Journal of the American Chemical Society, 1968
Peter Beak, Ronald J. Trancik
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Direct aromatic substitution by trimethylsilyl cations

The Journal of Organic Chemistry, 1988
openaire   +1 more source