元bonds Notice that at bonds are not rotationally symmetric. The orbital changes sign every 1800 b 2p2 C一c.4 node node node (1 nodal plane) (2 nodal planes) X-16
π bonds 2pz π* πb C C 2pz node Notice that π bonds are not rotationally symmetric. πb π* node node (2 nodal planes) The orbital changes sign every 180o (1 nodal plane) XI-16
元bonds Notice that bonds do not allow rotation. When rotated around the axis,the bond is broken: Orientation of orbitals 元* 2p2 2p2 b Bond I X-17
π bonds Notice that π bonds do not allow rotation. When rotated around the axis, the bond is broken: Bond Orientation of orbitals πb 2pz π* C C 2pz XI-17
元bonds Notice that bonds do not allow rotation. When rotated around the axis,the bond is broken: Orientation of orbitals C. 2p2 b No Bond ■ X-18
π bonds πb No Bond 2pz π* C C 2pz Orientation of orbitals Notice that π bonds do not allow rotation. When rotated around the axis, the bond is broken: XI-18
πbonds Notice that bonds do not allow rotation. When rotated around the axis,the bond is broken: Orientation of orbitals C 2pz 2p2 元b No Bond 0 X-19
π bonds No Bond Orientation of orbitals 2pz π* πb C C 2pz Notice that π bonds do not allow rotation. When rotated around the axis, the bond is broken: XI-19
元bonds Notice that bonds do not allow rotation. When rotated around the axis,the bond is broken: Orientation of orbitals C p2 b No Bond ■ X-20
π bonds No Bond Orientation of orbitals πb 2pz π* C C 2pz Notice that π bonds do not allow rotation. When rotated around the axis, the bond is broken: XI-20