Ralph Ruffolo
McMaster University
11 Papers
248 Citations
Ralph Ruffolo is an academic researcher from McMaster University. The author has contributed to research in topics: Reactivity (chemistry) & Cluster (physics). The author has an hindex of 10, co-authored 11 publications.
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Papers
Cluster-stabilized cations: synthesis, structures, molecular dynamics and reactivity
TL;DR: In this paper, the factors controlling the interactions between the electron-deficient centers and the metals are discussed in terms of their frontier molecular orbitals, and the growing usage of these metal-stabilized carbocations in organic synthesis, in the elucidation of reaction mechanisms and even in biological chemistry is described.
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Direct Detection and Characterization of a Transient 1-Silaallene Derivative in Solution
TL;DR: In this paper, the authors used laser flash photolysis techniques to identify a mixture of reactive intermediates which have been detected and identified using laser flash photosynthesis techniques and trapped as the methanol adducts in steady state irradiation experiments.
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Metal cluster stabilized fluorenyl, indenyl, and cyclopentadienyl antiaromatic cations : an nmr and x-ray crystallographic study
James A. Dunn,William J. Hunks,Ralph Ruffolo,Suzie S. Rigby,Michael A. Brook,Michael J. McGlinchey +5 more
TL;DR: In this article, variable-temperature NMR data on these cluster cations, and on their bis(diphenylphosphino)methane derivatives, reveal that the barrier to migration of the cationic center between cobalt cluster vertices increases in the order fluorenyl < indenyl < cyclopentadienyl and suggest that the cations with more antiaromatic character have the greatest need for charge delocalization onto the metal center.
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A Laser Flash Photolysis Study of the Photochemistry of (Phenylethynyl)pentamethyldisilane. Absolute Rate Constants for Trapping of a Reactive 1-Silaallene by Nucleophiles
TL;DR: In this article, the triplet state of the disilane was assigned to the following triples: 1,1-dimethyl-3-phenyl-3-(trimethylsilyl)-1-silaallene (τ ∼ 25 μs), dimethyl-silylene(τ ∼ 100 ns), and 1, 1-dimethyltransformer-1-silacyclopropene(τ > 100 ms) on the basis of their UV spectra and reactivity toward various reagents.
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Oligo(alkynylsilanes): Templates for Organometallic Polymers
Thomas Kuhnen,Mark Stradiotto,Ralph Ruffolo,Dagmar Ulbrich,Michael J. McGlinchey,Michael A. Brook +5 more
TL;DR: A series of compounds containing alkynylsilane and arylsilane groups, including oligomers and polymers, were used as transition-metal ligands as discussed by the authors, and the molecular weights of these complexes ranged up to 155'000 for a silicone polymer derived complex.
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