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...[[carbocation]]s achieve additional stabilization. Consequently, true 1° carbocations (with a classical structure) may be rare or nonexistent.{{cln|What on this [[Category:Carbocations]] ...

...er bound penta- or tetracoordinated (nonclassical) carbonium ions. Role of carbocations in electrophilic reactions|authorlink=George A. Olah|last=Olah|first=G. A.| [[Category:Carbocations]] ...

...er bound penta- or tetracoordinated (nonclassical) carbonium ions. Role of carbocations in electrophilic reactions | author = George Andrew Olah | author-link = Ge [[Category:Carbocations]] ...

...er bound penta- of tetracoordinated (nonclassical) carbonium ions. Role of carbocations in electrophilic reactions" [[George Andrew Olah]]; ''J. Am. Chem. Soc.''; ...carbocations, because they are stabilized by [[hyperconjugation]]. Primary carbocations are highly unstable. Therefore, reactions such as the [[SN1 reaction|S<sub> ...

...od donors in hyperconjugation resulting in a considerable stabilization of carbocations. In contrast to double bonds, stabilization of radicals is weaker and stabi ...

....org/nobel_prizes/chemistry/laureates/1994/olah-lecture.html My Search for Carbocations and Their Role in Chemistry] Nobel Lecture, December 8, 1994, by George A. ...with another Hungarian chemist, Stephen J. Kuhn. Olah's pioneering work on carbocations started during his eight years with Dow.<ref>{{cite book | author = George ...

* V.G.Shubin and G.I. Borodkin. Long-Lived Carbocations in Cold Siberia. Chapter 6, pp. 125—158 Carbocation Chemistry (collective ...

...ast3=Mateescu|first3=G. D.|last4=Riemenschneider|first4=J. L.|title=Stable Carbocations. CL. Fourier Transform 13C Nuclear Magnetic Resonance and X-ray Photoelectr ...lassical model, (b) describes a rapid equilibration between three distinct carbocations rather than delocalization. In 1973 Olah confirmed the validity of the non- ...

[[Category:Carbocations]] ...

...r HP, Moran MD, Schrobilgen GJ, Steinberg C, Suontamo RJ. The syntheses of carbocations by use of the noble-gas oxidant, {{chem|[XeOTeF|5|][Sb(OTeF|5|)|6|]}}: the ...

...5|+}} and [[Vinyl cation|vinyl]] {{chem|C|2|H|3|+}} cations. Occasionally, carbocations that bear more than one positively charged carbon atom are also encountered ...{{chem|CR|5|+}}, where R is H or alkyl), to the exclusion of non-classical carbocations like the [[ Norbornyl cation |2-norbornyl cation]].<ref>{{Cite journal|last ...

...[[rearrangement reaction]]s are rare compared to rearrangements involving carbocations and restricted to [[aryl]] migrations. ...

...cleavage. However, reactions that would require the formation of unstable carbocations ([[methyl]], [[Vinyl group|vinyl]], [[aryl]] or [[primary carbon]]) proceed ...

[[Category:Carbocations]] ...

...almost an order of magnitude weaker than the case of alkyl substitution on carbocations (σ_C–H→p_C), since an unfilled p orbital is lower ...

...structures differing only minutely in energy. Certainly, not all bicyclic carbocations are non-classical; the energy difference between classical and non-classica ...surprising as primary [[carbocation]]s are much less stable than secondary carbocations. However, the 2-norbornyl cation can be formed from derivatives of β-(Δ{{ ...

...e direction of [[George Olah]], where he worked on characterizing stable [[carbocations]] in superacids.<ref name=":0">{{Cite web|url=http://chem.usc.edu/faculty/P ...