Structural quantum effects and three-centre two-electron bonding in CH+5


HYPERCOORDINATE carbonium ions can be formed by protonating saturated hydrocarbons with superacids1–3. As this leaves a deficiency of bonding electrons, the resulting non-classical carbocations contain bonds in which two electrons are shared between three nuclei. Protonated methane, CH+5, might be seen as the prototype of such species1–3. But recent… (More)
DOI: 10.1038/375216a0


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