Results 71 to 80 of about 3,838,786 (204)

Dissociation mechanism for solid-phase epitaxy of silicon in the Si <100>/Pd2Si/Si (amorphous) system [PDF]

open access: yes, 1976
Solid-phase epitaxial growth (SPEG) of silicon was investigated by a tracer technique using radioactive 31Si formed by neutron activation in a nuclear reactor.
Lau, S. S.   +3 more
core   +1 more source

Divergent Fe-Mediated C–H Activation Paths Driven by Alkali Cations [PDF]

open access: yesJACS Au
Vincent Wowk   +5 more
doaj   +2 more sources

Regioselective Intermolecular Coupling Reaction of Arylketones and Alkenes Involving C-H Bond Activation Catalyzed by an \u3cem\u3ein Situ\u3c/em\u3e Formed Cationic Ruthenium-Hydride Complex [PDF]

open access: yes, 2009
The cationic ruthenium hydride complex, formed in situ from the treatment of the tetranuclear ruthenium hydride complex {[(PCy3)(CO)RuH]4(μ4-O)(μ3-OH)(μ2-OH)} with HBF4·OEt2, was found to be a highly effective catalyst for the intermolecular coupling ...
Lee, Do W., Yi, Chae S.
core   +1 more source

Heterolytic Bond Activation at Gold: Evidence for Gold(III) H-B, H-Si Complexes, H-H and H-C Cleavage [PDF]

open access: yes, 2019
The coordinatively unsaturated gold(III) chelate complex [(C^N-CH)Au(C6F5)]+ (1+) reacts with main group hydrides H-BPin and H-SiEt3 in dichloromethane solution at 70 °C to form the corresponding σ-complexes, which were spectroscopically characterized (C^
Beckett   +58 more
core   +1 more source

Benzene C−H Bond Activation in Carboxylic Acids Catalyzed by O-Donor Iridium(III) Complexes: An Experimental and Density Functional Study [PDF]

open access: yes, 2010
The mechanism of benzene C−H bond activation by [Ir(μ-acac-O,O,C^3)(acac-O,O)(OAc)]_2 (4) and [Ir(μ-acac-O,O,C^3)(acac-O,O)(TFA)]_2 (5) complexes (acac = acetylacetonato, OAc = acetate, and TFA = trifluoroacetate) was studied experimentally and ...
Bhalla, Gaurav   +7 more
core   +1 more source

Robotic Lepidoptery: Structural Characterization of (mostly) Unexpected Palladium Complexes Obtained from High-Throughput Catalyst Screening [PDF]

open access: yes, 2009
In the course of a high-throughput search for optimal combinations of bidentate ligands with Pd(II) carboxylates to generate oxidation catalysts, we obtained and crystallographically characterized a number of crystalline products. While some combinations
Bercaw, John E.   +7 more
core   +1 more source

Function of BID - a molecule of the bcl-2 family - in ischemic cell death in the brain [PDF]

open access: yes, 2002
Mitochondrial mechanisms, particularly the release of cytochrome c, play a role in the death of nerve and glial cells in cerebral ischemia. We have currently investigated whether BID, a proapoptotic molecule of the bcl-2 family and promoter of the ...
Amin-Hanjani, Sepideh   +5 more
core   +1 more source

Issues Relevant to C-H Activation at Platinum(II): Comparative Studies between Cationic, Zwitterionic, and Neutral Platinum(II) Compounds in Benzene Solution [PDF]

open access: yes, 2004
Cationic late metal systems are being highly scrutinized due to their propensity to mediate so-called electrophilic C-H activation reactions. This contribution compares the reactivity of highly reactive cationic platinum(II) systems with structurally
Betley, Theodore A.   +3 more
core   +1 more source

meta- and para-Selective C–H Functionalization by C–H Activation

open access: yes, 2015
Transition metal-catalyzed C–H bond functionalization has recently emerged as an indispensable tool for transforming otherwise unreactive C–H bonds. In addition to various strategies for ortho-selective functionalization via chelation assistance, organometallic C–H activation has recently enabled novel functionalizations of (hetero)arenes at remote ...
Li, Jie   +2 more
openaire   +2 more sources

Selective Borylation of C(sp3)−H Bond of Methyl Ethers Catalyzed by Iron Complexes Bearing Anionic Benzene‐Based PCP‐Pincer Ligands

open access: yesChemistryEurope
Highly selective catalytic C(sp3)−H borylation of methoxy groups has been achieved using newly synthesized iron complexes bearing benzene‐based PCP‐type pincer ligands as catalysts. Reactions of various aryl and alkyl methyl ethers as substrates with bis(
Shogo Kuriyama   +3 more
doaj   +1 more source

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