Proton and carbon-13 nuclear magnetic resonance reinvestigation of the dibenzo[a,c]cyclononatetraenyl anion and its 5,9-diphenyl derivative. Planarity vs nonplanarity
Proton and carbon-13 nuclear magnetic resonance reinvestigation of the dibenzo[a,c]cyclononatetraenyl anion and its 5,9-diphenyl derivative. Planarity vs nonplanarity