反はん結けつ合ごう

noun-modifying (irregular)

antibonding; back coupling

Technical term in physics and chemistry describing a molecular orbital that weakens the bond between atoms, or a related coupling phenomenon.

• 反はん結けつ合ごう性せい軌き道どうに電でん子しが入はいると結けつ合ごうが弱よわまる。

  When electrons occupy an antibonding orbital, the bond weakens.

• この反はん結けつ合ごう状じょう態たいは不ふ安あん定ていである。

  This antibonding state is unstable.