反键轨道

这是sigma星，来自于1s的反键轨道，它是一个分子轨道。

This is sigma star with the antibonding orbital that came from1s , and it is a molecular orbital .

然而这个，只是为了其完全性，把反键轨道也表示出来。

And this one , just for completeness , is what the antibonding orbital would look like .

当H原子和形成π键的原子相连时，π成键轨道和π反键轨道与H原子的2p空轨道相互作用，组成新的分子轨道，这样的结构称为π→p共轭体系。

The reciprocity between the orbits of π bond and π anti bond and the empty 2p orbit of the atom H build new molecular orbits when atom H connects the π bond atom . Such as structure called π→ p conjugate system .

（NTO）2的电荷转移主要是由于一子体系中O的孤对电子向另一子体系中最临近的N-H反键轨道转移。

The charge transfer in ( NTO ) 2 occurs mainly between the lone pair of O atom and the N-H antibond .

Mulliken布居分析指出，底物电子向NO转移，并填充到NO的反键轨道上，从而导致NO键的削弱，并形成NO-。

Mulliken population analysis shows that the electron transfer from the substrate to the anti - bonding orbital of adsorbed NO is the essential reason for the weakening of NO bond .

我们也可以讨论，相消干涉的反键轨道。

We can also talk about anti-bonding orbitals where we have destructive interference .

任何时候你看到有个星，这意味着它是反键轨道。

So any time you see a star that means an anti-bonding orbital .

这是一个反键轨道。

So it 's an Anti-bonding orbital .

但当我们讨论反键轨道的时候，它的能量应该更高。

But when we think about where anti-bonding orbitals should be , it should be higher in energy .

因为这样，反键轨道被堆积了，这两个电子都填到各自的反键轨道。

And because of the way those antibonding orbitals are stacked , the two electrons go one each into those antibonding .

今天我们先来，讨论两种分子轨道，我们要讨论成键和反键轨道。

So , we 'll start today talking about the two kinds of molecular orbitals , we can talk about bonding or anti-bonding orbitals .

这证明了，反键轨道，比原子轨道高，成键轨道比原子轨道第。

It turns out that the antibonding orbital is a little bit higher from the atomic orbital level than the bonding orbital is lower .

我将给分子轨道加上标，这个上标，表示反键轨道，有一个星号。

And I am going to superscript it molecular orbital , and this upper one , to indicate that it 's antibonding , has the asterisk .

特别的，我们把它们和，分子轨道相联系起来，我们说它们可以成为，成键轨道或者反键轨道。

So specifically , what we do associate them instead is within molecular orbitals , and what we say is that they can be either in bonding or anti-bonding orbitals .

因此你能看到，反键轨道上有两组，三组成键，得到一组净成键，所以成的是单键。

So you can see that there is going to be two sets in antibonding , three sets in bonding for a net of one , giving us the single bond .

另外一个要指出的事情是，反键轨道引起的能量升高，和成键轨道引起的能量降低是相同的。

And the other thing to point out is that the energy that an anti-bonding orbital is raised by , is the same amount as a bonding orbital is lowered by .

同样的，这是反键轨道，你们看到当你有反键轨道的时候，两个原子核中间的电子密度更小了。

So again , this is an anti-bonding orbital , and what you see is that there is now less electron density between the two nuclei than there was when you had non-bonding .

这里的这个，因为处在一个较高的能级，被叫做反键分子轨道能级。

And this one here , because it is at a higher energy is called antibonding molecular orbital .

这是反键分子轨道，我们有了成键，现在我们讨论反键。

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 .

脱卤反应的速率决定于电子转移的难易，与最低的碳卤反键σ空轨道的能级高度相关。

The rates of dehalogenation arc found to be dependent on the ease of electron transfer and the energy level of antibonding MO of C-X bond .