Abstract
Hypothesized “accidental” orbital degeneracies, from origins other than symmetry, in the second principal quantum level lead to surprising new chemistry of carbenes, aromatic compounds, and, most interestingly, to a possible new allotrope of carbon. Consequences of degeneracies in the transition metals are hinted at.
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Perks, H.M., Liebman, J.F. Paradigms and Paradoxes: Accidental Degeneracies, I: Suppose the 2s and 2p Orbitals Were Closer in Energy. How Would Organic Chemistry Be Different?. Structural Chemistry 14, 417–419 (2003). https://doi.org/10.1023/A:1024410229577
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DOI: https://doi.org/10.1023/A:1024410229577