Hydrogenation of Graphane: Searching for Unstable Products

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Discussion Overview

The discussion revolves around the hydrogenation of graphane, specifically seeking unstable products resulting from the attachment of hydrogen to carbon atoms. Participants explore the functional groups involved and the stability of the resulting products in relation to the reactants.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant inquires about a functional group on graphane that, when broken, would allow hydrogen from the environment to attach to carbon, resulting in a higher energy, unstable product.
  • Another participant questions the history or preparation of the graphene specimens, suggesting that this could significantly influence the edge chemistry involved.
  • A later reply emphasizes the theoretical nature of the graphene study and suggests various unsaturated hydrocarbons that could be attached to the edges to avoid free radicals, while also mentioning the potential for "reentrant" configurations and stabilized radicals.

Areas of Agreement / Disagreement

Participants express various viewpoints and suggestions, but no consensus is reached regarding the specific functional groups or the nature of the unstable products. Multiple competing ideas and approaches remain under discussion.

Contextual Notes

The discussion includes assumptions about the stability of products and the influence of specimen preparation on edge chemistry, which are not fully resolved.

masyousaf1
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Dear Members,

We are studying GraphAne. I need to know a functional group on graphEne which on breaking from "C attaches with "H" of environmental hydrogen and the other "H" attaches with the "C" i.e; Hydoregenation of graphane. The new product must be higher in energy (unstable product). I know many examples but the end product is always stable in w.r.t Reactants.
Expecting a warm response.
Best Regards
 
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Do you have any sort of history/preparation of your graphene specimen(s)? That's going to be a major determinant of the "edge" chemistry.
 
Bystander said:
Do you have any sort of history/preparation of your graphene specimen(s)? That's going to be a major determinant of the "edge" chemistry.
thanks for following this. We are studying graphene and graphane related structures theoretically. We need such a functional group to explain a stability issue.
 
Ah, "theoretical" graphene. At which point you can hang vinyl, acetylene, allene, or any other simple unsaturated hydrocarbon on the edges if you're trying to avoid free radicals on boundary carbon. You might also look at "reentrant" configurations or "embayments" and possibilities for "stabilized" radicals similar to the triphenylmethyl radical in equilibrium with hexaphenyl ethane, or radical cation/anion pair possibilities (tropylium, and can't come up with anion possibilities at the moment).
 
Thank You Bystander for the help. Wishing you a happy new year
 

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