化学问题一道(AP)(010)Explain why two atoms cannot form three pi bonds.
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/24 01:05:56
化学问题一道(AP)(010)Explain why two atoms cannot form three pi bonds.
化学问题一道(AP)(010)
Explain why two atoms cannot form three pi bonds.
化学问题一道(AP)(010)Explain why two atoms cannot form three pi bonds.
When the three p AO's on one atom approach those on another atom,one of the p's,e.g.the px,must make a head-on approach with the px on the other atom to form a sigama p MO.Only the two other p's,the py and pz,can overlap side-by-side to give pi bonds,the (pi)y and (pi)z.
When the three p Atomic Orbitals on one atom approach those on another atom, one of the p-orbitals (such as px) must make a head-on approach with the px on the other atom to form a sigma(sub-p) molecular orbital. Only the two other p-orbitals, the py and pz, can overlap side-by-side to give pi bonds, the pi(sub y) and pi(sub z).