Inside Cover, Volume 112, Issue 20


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This special issue features peer-reviewed conference proceedings from the Brazilian Symposium of Theoretical Chemistry, of which the work by Wenli Zou, Michael Filatov, and Dieter Cremer on page 3277 is an excellent example. The cover image is a stylized contourline diagram of a bond pseudorotation energy surface of the cyclopentadienyl cation. In their work, they find that the pseudo Jahn-Teller effect turns out to be much more important than the Jahn-Teller effect in this cation, contrary to commonly held assumptions.