University Chemistry ›› 2020, Vol. 35 ›› Issue (8): 89-92.doi: 10.3866/PKU.DXHX202007061

Special Issue: 无机化学课程教学

• Survey of Chemistry • Previous Articles     Next Articles

Pressure-Induced Behavior of Atoms and Molecules

Ping Cai(), Kai Hu, Wei Luo, Gongzhen Cheng   

  • Received:2020-07-20 Accepted:2020-07-22 Published:2020-07-28
  • Contact: Ping Cai E-mail:caiping@whu.edu.cn
  • Supported by:
    武汉大学示范课堂建设项目

Abstract:

In recent years, a large number of new materials and novel phenomena have been discovered and predicted at high-pressure. In this paper, the effects of high pressure on atomic orbital energy and chemical bonds are discussed based on basic chemical principles. Under high pressure, the energy of atomic orbitals changes, which causes the rearrangement of the electrons, and affects the chemical properties of the elements. In the case of molecules, molecular crystals undergo phase transitions under high pressure, unsaturated compounds undergo self-polymerization, and saturated compounds may be metallized.

Key words: High-pressure chemistry, Atomic orbital, Chemical bond

MSC2000: 

  • G64