The stable pentamethylcyclopentadienyl cation remains unknown.
Otto
Michael
M
UCR-CNRS Joint Research Chemistry Laboratory, UMR 2282 Department of Chemistry University of California Riverside, CA 92521-0403 USA.
Scheschkewitz
David
D
Kato
Tsuyoshi
T
Midland
Mark M
MM
Lambert
Joseph B
JB
Bertrand
Guy
G