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Just like we see destructive interference with water waves or with light waves, we can also see destructive interference with orbitals.
就像我们看到水波,和光波的相消干涉，我们也可以看到轨道的相消干涉。
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Since we're talking about wave functions, since we're talking about the properties of waves, we don't only have constructive interference, we can also imagine a case where we would have destructive interference.
因为我们讨论的是波函数，因为我们讨论的是波的性质，我们不仅有相长干涉，我们也可以想象在,某种情况下会有相消干涉。
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All right. So we see constructive interference, of course, we can also see destructive interference.
好了，我们看到的是相长干涉，当然我们也会看到相消干涉。
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So if we're subtracting the interference term, what we have here now is destructive interference.
如果我们减去干涉项，我们得到的就是相消干涉。
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We can also talk about anti-bonding orbitals where we have destructive interference.
我们也可以讨论,相消干涉的反键轨道。
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The reason that we can talk about this is remember that we're talking about wave functions, we're talking about waves, so we can have constructive interference in which two different orbitals can constructively interfere, we can also have destructive interference.
我们可以这么说的原因是,记住我们说的是波函数，我们说的是波函数，所以我们可以得到相长干涉,这是两个不同轨道会相长干涉，我们也有相消干涉。
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If you compare the s orbital with the bottom lobe, these have a different sign so they're going to destructively interfere.
如果你们比较s轨道和下面这叶，它们正负号相反,所以它们相消干涉。
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In this case is it constructive or destructive interference?
在这种情况是相长干涉还是相消干涉？
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We have destructive interference here.
这里是相消干涉。
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In contrast, if we have destructive interference, what we're going to form is a sigma 2 s star, and what does the star designate?
相反，如果我们是相消干涉，我们会形成sigma2s星，星代表什么？
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And the pi star orbitals result from any time you have destructive py interference from 2 p orbitals that are either the p x or the p y.
星轨道是由于2p轨道的相消干涉,不管是px还是。
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sa So we have 1 s a, and we're drawing this as having a positive amplitude, but since we have destructive interference we're going to draw 1 s b as having the opposite sign, so we have a plus and a minus in terms of signs.
我们有，我们把这画成一个正的振幅，但因为我们是相消干涉,我们把1sb画成相反的符号，所以我们有一正一负两个符号。
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