C2p
40 sp2 hybridized carbon
(C2p, C2p)
(Csp2, H1s)
(Csp2, Csp2)
FIGURE 4.19 A view of the bonding
pattern in ethene (ethylene), showing
the framework of -bonds and the
single -bond formed by side-to-side
overlap of unhybridized C2p-orbitals.
The double bond is resistant to twisting
because twisting would reduce the
overlap between the two C2p-orbitals
and weaken the -bond. Here the
bonding structure is superimposed over
a ball-and-stick model.
ANIMATION FIGURE 4.19