Question

Why would fluorene bind to dichloromethane more than fluorenone in TLC plates when fluorene is a non-polar molecule and fluorenone is a polar molecule?

Answer 1

Thin layer one silica gel or alumina have a renone layer chromatography (TLC) is performed on glass plastic a aluminium toil, coated with silica (absorbent get material) also called material) also called stationary ! phase and it o mobide phase, dichloromethane. Both silica gel and dichloromethane are polar in nature so fluoren make more bonds with silica gel as compared to dichloromethane while fluorene is non-polar in na so it will not make bond with silica gel and not even so much vander wools bond because it will be in motion with dichlomethane. The bond between dichloromethane and fluorene are vander- waals bonds which are more than fluorenone. Note - silica gel is more polar than dichloromethane.