Weblink 13.1 MOs of the trimethyl carbenium ion

MO1 shows the interaction between the 2p AO on the central carbon and C–H s bonding MOs. The LUMO shows the same interaction, but in this MO the interaction is out-of-phase. Note that the LUMO is primarily located on the central carbon.
Iso-surface Value:	+/-

• Select the orbital you wish to display using the drop-down menu.
• "Click and drag" on the 3D picture of the orbital to rotate it; "Click, shift and drag" to zoom in and out.
• The 3D representation can be shifted between solid, translucent and mesh views by using the "Model View" radio group.
• You can alter the value of the wavefunction at which the iso-surface is plotted by typing a new number into the "Iso-surface value" box and clicking the "Update" button.
• Checking the "Nodal Surfaces" box draws the zero valued iso-surface (as a green mesh) on the plot; this shows the position of the nodal plane.