这是一个反键轨道。
反键能量比非成键更高。
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.
我们应该把反键轨道标在,高于1s原子轨道能量的地方。
So we would label our anti-bonding orbital higher in energy than our 1 s atomic orbitals.
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.
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.
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.
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.
通过CO分子接近表面时各分子轨道能量本征值的变化,讨论了各轨道的成键、反键特征。
The bonding and antibonding character for the CO valence level have also been studied by analysis of the variations of the molecular eigenvalues when the CO molecule approaches the surface.
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.
计算量子点分子中束缚能级之间跃迁的振子强度表明,只有成键态和相应的反键态之间跃迁才是允许的。
And the bound state with the highest energy level in the quantum-dot molecule changes gradually into a quasibound state when the electric field strength increases.
本文对分子轨道理论教学中关于对称性匹配原则,最大重叠原则, 分子轨道符号及反键效应等几个问题进行了讨论。
The present author discusses the symmetricalmatching principle, the maximum overlapping principle, the molecule orbitalsymbols and the anti-bond effect in the teaching of the molecule orbital theory.
本文对分子轨道理论教学中关于对称性匹配原则,最大重叠原则, 分子轨道符号及反键效应等几个问题进行了讨论。
The present author discusses the symmetricalmatching principle, the maximum overlapping principle, the molecule orbitalsymbols and the anti-bond effect in the teaching of the molecule orbital theory.
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