Chemical formation of C2 from an alkynyl iodonium salt precursor is calculated to be strongly endo-energetic, in contrast to the reported chemical synthesis which is facile at room temperatures. If C2 is to be formed at such temperatures, a mechanism to counter the unfavourable thermodynamic energies is yet to be identified.
A Thermodynamic assessment of the reported room-temperature chemical synthesis of C2
05 May 2020, Version 1
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