All right, so the bonding order, you're correct, should be 2, if we subtract the number of bonding minus anti-bonding electrons and take that in 1/2.

好，你们是对的，键序为，如果我们用成键数,减去反键数除以2。

麻省理工公开课 - 化学原理课程节选

So you can see that this is non-bonding, this is even worse than non-bonding, it's anti-bonding, because we're actually getting rid of electron density between the two nuclei.

所以你可以看到这是不成键的，它甚至比不成键还糟糕，它是反键，因为我们实际上是去掉了,两个原子核之间的电子。

麻省理工公开课 - 化学原理课程节选

So if we name this orbital, this is an anti-bonding molecular orbital So we had bonding and now we're talking about anti-bonding.

这是反键分子轨道,我们有了成键，现在我们讨论反键。

麻省理工公开课 - 化学原理课程节选