Abstract
Polyynes and cumulenes from 2–12 atoms have been calculated at the B3LYP/6-311++G** level and their energies compared using an isodesmic reaction. The chain length has been modeled empirically affording an equation that predicts substantial variation for long chains.
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Alkorta, I., Elguero, J. Polyynes vs. Cumulenes: Their Possible Use as Molecular Wires. Struct Chem 16, 77–79 (2005). https://doi.org/10.1007/s11224-005-1089-9
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DOI: https://doi.org/10.1007/s11224-005-1089-9