Studied by 3 peopleฯ bond
cylindrically symmetric about the bond axis; no nodal plane along the bond axis
๐ bond
electron density in 2 lobes with a single nodal plane along the bond axis
Single bond
๐ bond
Double bond
ฯ bond + ๐ bond
Triple bond
ฯ bond + ๐ bond + ๐ bond
Exception
single-bonded terminal atoms
Electron promotion serves to
increase the number of unpaired electrons; if you have an empty orbital you can promote one of your electrons to that orbital
The hybrid orbitals only differ in
their orientation in space
2 hybrid orbitals =
sp
3 hybrid orbitals =
spยฒ
4 hybrid orbitals =
spยณ
In valence bond theory, bonds result from
the pairing of unpaired electrons from the valence shell atomic orbitals
Energy for the initial electron promotion comes from
bonding
Molecules can't rotate around a
double bond
Note
Flashcard